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Explain important functions in math.h library functions using C language
All mathematical related functions are stored in math.h header file in C programming language. The functions are explained below in detail.
sin()
This function is used to find the sin value of its argument.
The syntax of sin() function is as follows −
double sin(double a);
For example,
double a=sin(3.14/2);
The output is as follows −
a=1 (approx.)
cos()
It is used to find the cos value of its argument.
The syntax for cos() function is as follows −
double cos(double a);
For example,
double a=cos(3.14/2);
The output is as follows −
a=0 (approx.)
tan()
It is used to find the tan value of its argument.
The syntax for tan() function is as follows −
double tan (double a);
For example,
double a=tan(3.14/2);
exp()
It is used to find the exponent value of its argument.
The syntax for exp() is as follows −
double exp (double a);
For example,
double a=exp(4.6);
floor()
It is used to round down a float number.
The syntax for floor() function is as follows −
Double floor(double a);
For example,
Double a=floor(93.58);
The output is as follows −
A=93
ceil()
It is used to round up a float number.
The syntax for ceil() function is as follows −
Double ceil(double a);
For example,
Double a=ceil(93.58);
The output is as follows −
A=94
abs()
It is used to find the absolute value of an integer.
The syntax for abs() function is as follows −
int abs(int a);
For example,
Int a= abs(-6);
The output is as follows −
a=6
pow()
It is used to find the power of a value.
The syntax for pow() function is as follows −
double pow(double a,double b);
For example,
double x=pow(2,3)
The output is as follows −
x=8
sqrt()
It is used to find the square root value of its argument.
The syntax for sqrt() function is as follows −
double sqrt(double a);
For example,
double x=sqrt(36);
The output is as follows −
x=6
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