Test: C++ Math - Class 7 MCQ

#include is a header file required for manipulation of math functions.

In this program, We are breaking out the number by using the frexp function.
Output:
$ g++ math.cpp
$ a.out
8

In this program, We are calculating the 7 power of 3 by using the powfunction. As we are using 7.0, it is producing the result in 343.00
Output:
$ g++ math2.cpp
$ a.out
343.000000

In this program, We are finding the absolute value of -10.6 by using abs function.
Output:
$ g++ math4.cpp
$ a.out
10.600000

There are two parameters that are used in frexp function. They are floating point value to be computed and pointer to an int object.

The trigonometric functions work with angles in radians rather than degrees.

There are three macros used in mathematical functions. They are HUGE_VAL, EDOM, ERANGE.

In this program, We are finding out the log value of param by using param function.
Output:
$ g++ math1.cpp
$ a.out
1.704748

In this program, We are finding the remainder of the given values by using fmod function.
Output:
$ g++ math3.cpp
$ a.out
1.300000
1.700000

Because tan has more different definition in normal case and in case of complex number i.e. tan = sin/cos(normally) and tan = y/x in complex numbers.