|
INFINITY COURSE
Algebra- Engineering Maths for Engineering Mathematics781 students learning this week · Last updated on Nov 23, 2024 |
The Algebra-Engineering Maths Course from EduRev is a comprehensive program designed for engineering students to gain expertise in algebraic concepts
... view more
and their application in engineering mathematics. The course covers topics like linear equations, matrices, determinants, vector spaces, and more. With in-depth explanations and practical examples, this course equips students with the skills and knowledge required to excel in engineering mathematics. Join the Algebra-Engineering Maths Course on EduRev and take the first step towards a successful engineering career.
Algebra- Engineering Maths Study Material
| 1 Crore+ students have signed up on EduRev. Have you? Download the App |
Top Courses for Engineering Mathematics
Algebra- Engineering Maths for Engineering Mathematics Exam Pattern 2024-2025
Algebra- Engineering Maths Exam Pattern for Engineering Mathematics
Algebra is an essential part of Engineering Mathematics and forms the basis of many important concepts in engineering. It is a fundamental branch of mathematics that deals with symbols and the rules for manipulating these symbols. Algebra plays a crucial role in various fields of engineering, including electrical, mechanical, civil, and chemical engineering.
The exam pattern for Algebra in Engineering Mathematics is designed to test the students' understanding of the fundamental concepts of Algebra and their ability to apply these concepts to solve engineering problems. The exam usually consists of both theoretical and practical components.
Theoretical Component: This component of the exam tests the students' understanding of the fundamental concepts of Algebra. The questions in this section are usually in the form of multiple-choice questions or short answer questions. Some of the topics covered in this section include:
- Linear equations and inequalities
- Quadratic equations and inequalities
- Polynomial equations and inequalities
- Rational equations and inequalities
- Exponential and logarithmic equations and inequalities
- Matrices and determinants
Practical Component: The practical component of the exam tests the students' ability to apply the concepts of Algebra to solve engineering problems. The questions in this section are usually in the form of numerical problems or analytical problems. Some of the topics covered in this section include:
- Simultaneous linear equations
- Quadratic equations
- Polynomial equations
- Matrices and determinants
- Eigenvalues and eigenvectors
- Linear transformations
Key Pointers:
- Algebra is an essential part of Engineering Mathematics and forms the basis of many important concepts in engineering.
- The exam pattern for Algebra in Engineering Mathematics is designed to test the students' understanding of the fundamental concepts of Algebra and their ability to apply these concepts to solve engineering problems.
- The theoretical component of the exam tests the students' understanding of the fundamental concepts of Algebra, while the practical component tests their ability to apply these concepts to solve engineering problems.
- Some of the topics covered in the exam include linear equations and inequalities, quadratic equations and inequalities, polynomial equations and inequalities, matrices and determinants, and eigenvalues and eigenvectors.
- To excel in Algebra, students need to have a strong foundation in the subject and practice solving problems regularly.
Algebra is an essential part of Engineering Mathematics and forms the basis of many important concepts in engineering. It is a fundamental branch of mathematics that deals with symbols and the rules for manipulating these symbols. Algebra plays a crucial role in various fields of engineering, including electrical, mechanical, civil, and chemical engineering.
The exam pattern for Algebra in Engineering Mathematics is designed to test the students' understanding of the fundamental concepts of Algebra and their ability to apply these concepts to solve engineering problems. The exam usually consists of both theoretical and practical components.
Theoretical Component: This component of the exam tests the students' understanding of the fundamental concepts of Algebra. The questions in this section are usually in the form of multiple-choice questions or short answer questions. Some of the topics covered in this section include:
- Linear equations and inequalities
- Quadratic equations and inequalities
- Polynomial equations and inequalities
- Rational equations and inequalities
- Exponential and logarithmic equations and inequalities
- Matrices and determinants
Practical Component: The practical component of the exam tests the students' ability to apply the concepts of Algebra to solve engineering problems. The questions in this section are usually in the form of numerical problems or analytical problems. Some of the topics covered in this section include:
- Simultaneous linear equations
- Quadratic equations
- Polynomial equations
- Matrices and determinants
- Eigenvalues and eigenvectors
- Linear transformations
Key Pointers:
- Algebra is an essential part of Engineering Mathematics and forms the basis of many important concepts in engineering.
- The exam pattern for Algebra in Engineering Mathematics is designed to test the students' understanding of the fundamental concepts of Algebra and their ability to apply these concepts to solve engineering problems.
- The theoretical component of the exam tests the students' understanding of the fundamental concepts of Algebra, while the practical component tests their ability to apply these concepts to solve engineering problems.
- Some of the topics covered in the exam include linear equations and inequalities, quadratic equations and inequalities, polynomial equations and inequalities, matrices and determinants, and eigenvalues and eigenvectors.
- To excel in Algebra, students need to have a strong foundation in the subject and practice solving problems regularly.
Algebra- Engineering Maths Syllabus 2024-2025 PDF Download
Syllabus for Engineering Mathematics:
Algebra:
- Introduction to Algebraic Expressions
- Operations on Algebraic Expressions
- Factorization of Algebraic Expressions
- Rational Expressions and their Simplification
- Linear Equations and Inequalities
- Quadratic Equations
- Complex Numbers
- Matrices and Determinants
- Systems of Linear Equations
Calculus:
- Limits and Continuity
- Derivatives and their Applications
- Techniques of Differentiation
- Integration and its Applications
- Techniques of Integration
- Differential Equations
- Partial Differentiation
- Applications of Partial Differentiation
- Vector Calculus
Probability and Statistics:
- Probability and its Applications
- Random Variables and Probability Distributions
- Mathematical Expectation
- Moments and Moment Generating Functions
- Central Limit Theorem
- Statistical Inference
- Hypothesis Testing
- Regression Analysis
Numerical Methods:
- Introduction to Numerical Methods
- Numerical Solutions of Algebraic and Transcendental Equations
- Interpolation and Approximation
- Numerical Differentiation and Integration
- Solutions of Ordinary Differential Equations
- Finite Differences and Finite Element Methods
Engineering Applications:
- Applications of Mathematics in Engineering
- Linear Programming
- Optimization Techniques
- Fourier Series and Transformations
- Laplace Transforms
- Z-Transforms
- Matrices and Eigenvalues in Engineering Applications
Lectures:
The course will consist of lectures, problem-solving sessions, and assignments. Lectures will be conducted using multimedia tools such as presentations and videos. The lectures will cover the theoretical aspects of the topics mentioned above, and the problem-solving sessions will focus on the practical applications of the concepts. The assignments will consist of a mix of theoretical and practical problems, and students will be required to submit them within a specified deadline.
Assessment:
The course will be assessed through class participation, assignments, quizzes, and a final examination. The weightage of each component is as follows:
- Class participation: 10%
- Assignments: 20%
- Quizzes: 20%
- Final examination: 50%
Conclusion:
Engineering Mathematics is an essential subject for any engineering student. It provides a strong foundation for various engineering subjects and plays a crucial role in solving real-world problems. The syllabus mentioned above covers all the fundamental topics of Engineering Mathematics and is designed to help students develop a strong understanding of the subject.
Algebra:
- Introduction to Algebraic Expressions
- Operations on Algebraic Expressions
- Factorization of Algebraic Expressions
- Rational Expressions and their Simplification
- Linear Equations and Inequalities
- Quadratic Equations
- Complex Numbers
- Matrices and Determinants
- Systems of Linear Equations
Calculus:
- Limits and Continuity
- Derivatives and their Applications
- Techniques of Differentiation
- Integration and its Applications
- Techniques of Integration
- Differential Equations
- Partial Differentiation
- Applications of Partial Differentiation
- Vector Calculus
Probability and Statistics:
- Probability and its Applications
- Random Variables and Probability Distributions
- Mathematical Expectation
- Moments and Moment Generating Functions
- Central Limit Theorem
- Statistical Inference
- Hypothesis Testing
- Regression Analysis
Numerical Methods:
- Introduction to Numerical Methods
- Numerical Solutions of Algebraic and Transcendental Equations
- Interpolation and Approximation
- Numerical Differentiation and Integration
- Solutions of Ordinary Differential Equations
- Finite Differences and Finite Element Methods
Engineering Applications:
- Applications of Mathematics in Engineering
- Linear Programming
- Optimization Techniques
- Fourier Series and Transformations
- Laplace Transforms
- Z-Transforms
- Matrices and Eigenvalues in Engineering Applications
Lectures:
The course will consist of lectures, problem-solving sessions, and assignments. Lectures will be conducted using multimedia tools such as presentations and videos. The lectures will cover the theoretical aspects of the topics mentioned above, and the problem-solving sessions will focus on the practical applications of the concepts. The assignments will consist of a mix of theoretical and practical problems, and students will be required to submit them within a specified deadline.
Assessment:
The course will be assessed through class participation, assignments, quizzes, and a final examination. The weightage of each component is as follows:
- Class participation: 10%
- Assignments: 20%
- Quizzes: 20%
- Final examination: 50%
Conclusion:
Engineering Mathematics is an essential subject for any engineering student. It provides a strong foundation for various engineering subjects and plays a crucial role in solving real-world problems. The syllabus mentioned above covers all the fundamental topics of Engineering Mathematics and is designed to help students develop a strong understanding of the subject.
This course is helpful for the following exams: Engineering Mathematics
How to Prepare Algebra- Engineering Maths for Engineering Mathematics ?
How to Prepare Algebra- Engineering Maths for Engineering Mathematics?
Engineering Mathematics is a crucial subject for engineering students, and Algebra- Engineering Maths is an integral part of the course. To excel in this subject, students need to have a strong foundation in algebraic concepts and their application in engineering problems. Here are some tips to prepare for Algebra- Engineering Maths for Engineering Mathematics:
Understand the Basics
Before starting with advanced concepts, it is important to have a clear understanding of the basics of algebra. This includes understanding operations such as addition, subtraction, multiplication, and division. Students should also be familiar with algebraic expressions, equations, and inequalities.
Practice Regularly
Algebra is a subject that requires consistent practice. Students should make it a habit to practice algebraic problems regularly. This will help in improving their problem-solving skills and speed. It is also important to solve problems from different sources such as textbooks, online resources, and previous year question papers.
Focus on Applications
Engineering Mathematics is all about applying mathematical concepts to solve real-world problems. Students should focus on understanding the application of algebraic concepts in engineering problems. This will help them in solving complex problems and developing a deeper understanding of the subject.
Seek Help When Needed
If students face any difficulty in understanding a concept or solving a problem, they should seek help from their professors or peers. They can also refer to online resources such as EduRev's Algebra- Engineering Maths course, which provides comprehensive study material and practice problems.
By following these tips, students can prepare for Algebra- Engineering Maths for Engineering Mathematics and excel in the subject. Remember, consistent practice and a clear understanding of the basics are key to success in algebra.
Importance of Algebra- Engineering Maths for Engineering Mathematics
The Importance of Algebra- Engineering Maths Course for Engineering Mathematics
Algebra is one of the fundamental branches of mathematics that is widely used in engineering applications. The Algebra- Engineering Maths Course offered by EduRev is specifically designed to help engineering students understand the basic principles of algebra and its applications in engineering mathematics. In this article, we will discuss the importance of the Algebra- Engineering Maths course for engineering students.
1. Understanding Algebraic Concepts
The Algebra- Engineering Maths course helps students to understand the fundamental concepts of algebra such as equations, polynomials, functions, and matrices. These concepts are crucial for engineering students as they form the basis of many engineering applications. A thorough understanding of algebraic concepts is essential for solving complex engineering problems.
2. Applying Algebra in Engineering
Algebra is widely used in various engineering fields such as civil, mechanical, electrical, and chemical engineering. The Algebra- Engineering Maths course provides students with the necessary skills to apply algebraic concepts in engineering applications. Students learn how to use algebra to solve problems related to circuits, mechanics, structures, and fluid dynamics, among others.
3. Enhancing Problem-Solving Skills
Algebra- Engineering Maths course helps students to develop critical thinking and problem-solving skills. The course equips students with the necessary tools to tackle complex engineering problems by breaking them down into simpler algebraic equations. Students learn how to apply algebraic concepts to solve problems systematically, which is a valuable skill in the engineering industry.
4. Preparing for Advanced Courses
The Algebra- Engineering Maths course is a prerequisite for many advanced engineering courses such as calculus, differential equations, and linear algebra. A strong foundation in algebraic concepts is essential for success in these courses. The Algebra- Engineering Maths course prepares students for advanced engineering courses by providing them with the necessary algebraic skills.
Conclusion
In conclusion, the Algebra- Engineering Maths course is essential for engineering students as it provides them with a solid understanding of algebraic concepts and their applications in engineering. The course enhances problem-solving skills and prepares students for advanced engineering courses. By taking the Algebra- Engineering Maths course, students can become proficient in algebra and apply it to solve complex engineering problems.
Algebra is one of the fundamental branches of mathematics that is widely used in engineering applications. The Algebra- Engineering Maths Course offered by EduRev is specifically designed to help engineering students understand the basic principles of algebra and its applications in engineering mathematics. In this article, we will discuss the importance of the Algebra- Engineering Maths course for engineering students.
1. Understanding Algebraic Concepts
The Algebra- Engineering Maths course helps students to understand the fundamental concepts of algebra such as equations, polynomials, functions, and matrices. These concepts are crucial for engineering students as they form the basis of many engineering applications. A thorough understanding of algebraic concepts is essential for solving complex engineering problems.
2. Applying Algebra in Engineering
Algebra is widely used in various engineering fields such as civil, mechanical, electrical, and chemical engineering. The Algebra- Engineering Maths course provides students with the necessary skills to apply algebraic concepts in engineering applications. Students learn how to use algebra to solve problems related to circuits, mechanics, structures, and fluid dynamics, among others.
3. Enhancing Problem-Solving Skills
Algebra- Engineering Maths course helps students to develop critical thinking and problem-solving skills. The course equips students with the necessary tools to tackle complex engineering problems by breaking them down into simpler algebraic equations. Students learn how to apply algebraic concepts to solve problems systematically, which is a valuable skill in the engineering industry.
4. Preparing for Advanced Courses
The Algebra- Engineering Maths course is a prerequisite for many advanced engineering courses such as calculus, differential equations, and linear algebra. A strong foundation in algebraic concepts is essential for success in these courses. The Algebra- Engineering Maths course prepares students for advanced engineering courses by providing them with the necessary algebraic skills.
Conclusion
In conclusion, the Algebra- Engineering Maths course is essential for engineering students as it provides them with a solid understanding of algebraic concepts and their applications in engineering. The course enhances problem-solving skills and prepares students for advanced engineering courses. By taking the Algebra- Engineering Maths course, students can become proficient in algebra and apply it to solve complex engineering problems.
Algebra- Engineering Maths for Engineering Mathematics FAQs
| 1. What is Algebra? |  |
Ans. Algebra is a branch of mathematics that deals with mathematical symbols and the rules for manipulating these symbols. It involves solving equations, finding unknown values, and representing relationships between variables.
| 2. How is Algebra used in Engineering Mathematics? | |
Ans. Algebra is used extensively in Engineering Mathematics, as it forms the basis of many engineering calculations. It is used to solve equations that describe physical phenomena, and to represent relationships between variables in engineering problems. It is also used in calculus, which is a fundamental tool for engineering analysis.
| 3. What are the different types of Algebra? | |
Ans. There are several types of Algebra, including elementary algebra, abstract algebra, linear algebra, and Boolean algebra. Elementary algebra deals with basic operations such as addition, subtraction, multiplication, and division, while abstract algebra is concerned with more advanced concepts such as groups, rings, and fields. Linear algebra deals with linear equations and matrices, and Boolean algebra is a type of algebra that deals with binary variables and logical operations.
| 4. What are some common algebraic formulas used in Engineering Mathematics? | |
Ans. Some common algebraic formulas used in Engineering Mathematics include the quadratic formula, which is used to solve quadratic equations, the Pythagorean theorem, which relates the sides of a right triangle, and the distance formula, which is used to find the distance between two points in a coordinate plane. Other important formulas include those for solving systems of linear equations, and those for calculating the area and volume of various geometric shapes.
| 5. How can I improve my Algebra skills for Engineering Mathematics? | |
Ans. To improve your Algebra skills for Engineering Mathematics, it is important to practice solving problems and working with equations on a regular basis. You can also use resources such as textbooks, online tutorials, and practice exams to improve your understanding of Algebra concepts. Additionally, seeking help from a tutor or instructor can be beneficial in identifying areas where you may need additional support.
Best Coaching for Algebra- Engineering Maths for Engineering Mathematics
If you are looking for the best coaching for Algebra and Engineering Maths for Engineering Mathematics, then EduRev is the perfect online education platform for you. It provides free online coaching with a vast collection of study material, including PDF downloads, summaries, and important chapters. EduRev offers comprehensive coverage of Algebra, Engineering Maths, and Mathematics for Engineering, making it an ideal resource for students pursuing engineering or related fields.
The Algebra section covers a wide range of topics, including Algebra for Engineers, Algebraic Equations, Linear Algebra, Algebraic Formulas, Quadratic Equations, Algebraic Functions, Algebraic Expressions, Algebraic Manipulations, Algebraic Techniques, Algebraic Principles, and Algebraic Operations. The Engineering Maths section covers Calculus, Mathematics for Scientists, and Mathematics for Technologists, providing a comprehensive understanding of Algebraic Concepts and their applications in engineering.
EduRev's online coaching is not only convenient, but it is also free, making it accessible to all students. Its study material is regularly updated to ensure that students have access to the latest information and techniques. The platform's easy-to-use interface and engaging content make it an excellent resource for students looking to improve their Algebra and Engineering Maths skills.
In conclusion, EduRev is one of the best coaching platforms for Algebra and Engineering Maths for Engineering Mathematics. Its free online coaching and vast collection of study material, including PDF downloads, summaries, and important chapters, make it a convenient and comprehensive resource for students pursuing engineering or related fields. With its coverage of Algebra, Engineering Maths, and Mathematics for Engineering, EduRev provides students with a thorough understanding of Algebraic Concepts and their applications in engineering. So, if you want to improve your Algebra and Engineering Maths skills, EduRev is the perfect platform for you.
The Algebra section covers a wide range of topics, including Algebra for Engineers, Algebraic Equations, Linear Algebra, Algebraic Formulas, Quadratic Equations, Algebraic Functions, Algebraic Expressions, Algebraic Manipulations, Algebraic Techniques, Algebraic Principles, and Algebraic Operations. The Engineering Maths section covers Calculus, Mathematics for Scientists, and Mathematics for Technologists, providing a comprehensive understanding of Algebraic Concepts and their applications in engineering.
EduRev's online coaching is not only convenient, but it is also free, making it accessible to all students. Its study material is regularly updated to ensure that students have access to the latest information and techniques. The platform's easy-to-use interface and engaging content make it an excellent resource for students looking to improve their Algebra and Engineering Maths skills.
In conclusion, EduRev is one of the best coaching platforms for Algebra and Engineering Maths for Engineering Mathematics. Its free online coaching and vast collection of study material, including PDF downloads, summaries, and important chapters, make it a convenient and comprehensive resource for students pursuing engineering or related fields. With its coverage of Algebra, Engineering Maths, and Mathematics for Engineering, EduRev provides students with a thorough understanding of Algebraic Concepts and their applications in engineering. So, if you want to improve your Algebra and Engineering Maths skills, EduRev is the perfect platform for you.
Tags related with Algebra- Engineering Maths for Engineering Mathematics
Algebra, Engineering Maths, Engineering Mathematics, Mathematics for Engineering, Engineering Algebra, Algebra for Engineers, Algebraic Equations, Linear Algebra, Calculus, Mathematics for Scientists, Mathematics for Technologists, Algebraic Concepts, Algebraic Formulas, Quadratic Equations, Algebraic Functions, Algebraic Expressions, Algebraic Manipulations, Algebraic Techniques, Algebraic Principles, Algebraic Operations.
Course Description
Algebra- Engineering Maths for Engineering Mathematics 2024-2025 is part of Engineering Mathematics preparation. The notes and questions for Algebra- Engineering Maths have been prepared
according to the Engineering Mathematics exam syllabus. Information about Algebra- Engineering Maths covers all important topics for Engineering Mathematics 2024-2025 Exam.
Find important definitions, questions, notes,examples, exercises test series, mock tests and Previous year questions (PYQs) below for
Algebra- Engineering Maths.
Preparation for Algebra- Engineering Maths in English is available as part of our Engineering Mathematics preparation & Algebra- Engineering Maths in Hindi for Engineering Mathematics courses.
Download more important topics related with Algebra- Engineering Maths, notes, lectures and mock test series for Engineering Mathematics Exam by signing up for free.
Course Speciality
The course provides in-depth knowledge of Algebra-I .
Full Syllabus, Lectures & Tests to study Algebra- Engineering Maths - Engineering Mathematics | Best Strategy to prepare for Algebra- Engineering Maths | Free Course for Engineering Mathematics Exam
Course Options
|
View your Course Analysis |
|
|
Create your own Test |
|
Related Searches
Lecture 2 - Principle of Mathematical Induction and Well Ordering Principle , Lecture 7 - Linear Transformations , Lecture 3 - Sets and Relations , Lecture 8 - Eigenvalues and Eigenvectors , Lecture 6 - Systems of Linear Equation , Lecture 9 - Rank of Matrices , Lecture 1 - Complex Numbers and their Properties , Lecture 4 - Sets and Functions , Lecture 5 - Polynomials
Related Exams
|
|
Join course for Free
This course includes:
9 Documents
4.96 (868+ ratings)
Get this course, and all other courses for Engineering Mathematics with EduRev Infinity Package.
|
Explore Courses for Engineering Mathematics exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
Course Speciality
The course provides in-depth knowledge of Algebra-I .
Full Syllabus, Lectures & Tests to study Algebra- Engineering Maths - Engineering Mathematics | Best Strategy to prepare for Algebra- Engineering Maths | Free Course for Engineering Mathematics Exam
Additional Information about Algebra- Engineering Maths for Engineering Mathematics for Engineering Mathematics Preparation
Algebra- Engineering Maths for Engineering Mathematics Books
Algebra- Engineering Maths for Engineering Mathematics Books is your ultimate resource for mastering the Engineering Mathematics Exam.
Get with a wide array of carefully selected books that cover every aspect of the Algebra- Engineering Maths for Engineering Mathematics syllabus.
From in-depth subject knowledge to practice papers, our collection has it all.
Boost your confidence by attempting question papers and gain valuable insights from detailed paper analysis.
Prepare with precision using our mock tests, designed to simulate the real exam experience.
With Algebra- Engineering Maths for Engineering Mathematics Engineering Mathematics Books, you'll have the best study material at your fingertips, ensuring your success in the Engineering Mathematics Exam.
Algebra- Engineering Maths for Engineering Mathematics Notes PDF Download
Access the comprehensive Algebra- Engineering Maths for Engineering Mathematics Notes for Engineering Mathematics Exam at EduRev.
Elevate your preparation with well-structured study material and concise notes.
Stay updated with the latest exam pattern and syllabus.
Prepare confidently with practice papers and question banks. Enhance your understanding through detailed paper analysis.
Get access to toppers' notes for valuable insights.
With Algebra- Engineering Maths for Engineering Mathematics Notes PDF download, you can streamline your study and be well-prepared for the Engineering Mathematics Exam.
Achieve success with EduRev's trusted study resources and boost your scores effortlessly.
Algebra- Engineering Maths for Engineering Mathematics Previous Year Papers
Algebra- Engineering Maths for Engineering Mathematics Previous Year Papers from EduRev: Prepare for Engineering Mathematics exam with ease using our extensive collection of Previous Year Papers.
Access question papers, practice papers, and in-depth paper analysis to master the exam pattern and syllabus.
Stay updated on the exam date and results while practicing in your preferred language.
Whether you need preparation tips, best books, study material, or subject-specific syllabus, EduRev's official website has you covered.
Enhance your exam readiness with Toppers' notes and comprehensive videos.
Trust EduRev's Previous Year Papers for a successful Engineering Mathematics exam journey.
Important Questions for Algebra- Engineering Maths for Engineering Mathematics
Important questions are crucial for acing your Engineering Mathematics exam.
Understanding the question pattern and types is essential for effective preparation.
Explore previous years' question papers to get a sense of the language and format used.
Practice papers are available to hone your skills and assess your progress.
Analyzing question trends can give you an edge during the exam. Our recommended books and study material cover all topics in the syllabus.
Additionally, coaching videos provide valuable insights. Stay updated on the official website for exam dates and results.
Prepare with confidence, as EduRev has got your question-related needs covered for Algebra- Engineering Maths for Engineering Mathematics .
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup