C Reference function tan()

Usage of tan():

double tan(double x);

Parameters:

There is no range limit on the argument.

Return value:

There is no range limit on the return value.

Source code example of tan():


	#include<stdio.h>
	#include<math.h>

	#define PI 3.14159265

	main()
	{
		double input, output;
		input = 50.0;
		output = tan (input*PI/180);
		printf ("Tangent of %lf degrees is %lf\n", input, output);
		return 0;
	}

Output of the tan example program above:


	Tangent of 50.000000 degrees is 1.191754

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