C++ Math sin() Function

C++ Math sin() Function with tutorial for beginners and professionals with examples on isgreaterequal(), less(), islessequal(), islessgreater(), isunordered(), exp(), frexp(), ldexp(), log(), log10(), modf(), exp2(), expm1(), log1p(), log2(), logb(), scalbn(), scalbln() etc.

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C++ Math sin()

The function is used to find the sine of an angle given in radian.

Syntax

Consider a radian 'x'. Syntax would be:

float sin(float x);
float sin(double x);
float sin(long double x);
double sin(integral x);

Note: If the value passed is an integer type, then it is cast to double.

Parameter

x: The value specified in terms of radian.

Return value

It returns the sine of an angle given in radian in the range[-1,1].

Example 1

Let's see a simple example when the value of x is positive.

#include 
#include
using namespace std;
int main()
{
  double degree=60;
  double radian=degree*3.14/180;
  cout<<"Sine of an angle is : "<

Output:

Sine of an angle is : 0.86576

In this example, sin() function calculates the sine of an angle when the degree is equal to 60.

Example 2

Let's see a simple example when the value of x is negative.

#include 
#include
using namespace std;
int main()
{
  double degree= -50;
  double radian=degree*3.14/180;
  cout<<"Sine of an angle is : "<

Output:

Sine of an angle is : -0.76576

In his example, sin() function finds the sine of an angle when the value of degree is negative i.e -50.

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