Home » C Programs » C Program to Calculate Sine Value

# C Program to Calculate Sine Value

Basic c program to calculate sine value. The ratio of the length of the side of the triangle opposite the angle to the length of the triangle’s hypotenuse is the sine of one of the angles of a right triangle, frequently abbreviated “sin.” This is a sample c program to calculate sine value

## Sin Function in C

Sine and cosine are trigonometric functions of an angle in mathematics. In the context of a right triangle, the sine and cosine of an acute angle are defined as follows:

for the specified angle, the sine is the ratio of the length of the opposite side to the length of the triangle’s longest side (the hypotenuse), and the cosine is the ratio of the length of the adjacent leg to the hypotenuse.

The sine and cosine functions are given as sinx and cos x, respectively, for an angle. These are important method which are used in c programming.

## Double Keyword in C

The double data type is a built-in data type in the compiler that is used to define numeric variables that contain decimal integers.

The double is recognised as a type in C, C++, C#, and many other programming languages.

A double data type is a 64-bit IEEE 754 floating point with double precision.

The Floating-Point Types, Formats, and Values part of the Java Language Specification specifies its range of values, which is beyond the scope of this article. This data type is usually the default for decimal values.

## C Program For Sine Series

``````//c program to calculate sine value
#include <stdio.h>
#include <math.h>
int main()
{
double x=0.5,y=1;
printf("sine %f is %f\n",x,sin(x));
printf("sine %f is %f\n",y,sin(y));
return 0;
}``````

Output:

sine 0.500000 is 0.479426
sine 1.000000 is 0.841471