The tan Function in C programming is one of the Math Library Function. It is used to calculate the Trigonometry Tangent value for the specified expression. In this article we will show you, How to use this TAN function with example.
TIP : Please refer ATAN Function article to calculate the Arc Tangent of specified expression.
Syntax of a TAN Function in C
Let us see the mathematical formula behind this Trigonometry Tangent function:
Tan(x) = Length of the Opposite Side / Length of the Adjacent Side
The basic syntax of the tan in C Programming is as shown below.
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double tan(double number); |
TAN Function in C Example
The tan function in math library allows you to calculate the trigonometric Tangent for the specified values. This C program, ask the user to enter his/her own value, and then it will find the tangent value of the user specified value
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/* Example for TAN Function in C Programming */ #include <stdio.h> #include <math.h> int main() { double tanValue, number; printf(" Please Enter the Value to Calculate Tangent : "); scanf("%lf", &number); tanValue = tan(number); printf("\n The Tangent, or Tan value of %lf = %f ", number, tanValue); return 0; } |
OUTPUT
C TAN Function Example 2
This example allow the user to enter the value in degrees. Next, we are converting the degrees to Radians. And finally, we are finding the Tangent value of the radian
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/* Example for TAN Function in C Programming */ #include <stdio.h> #include <math.h> #define PI 3.1415926 int main() { double tanValue, radianVal, degreeVal; printf(" Please Enter an Angle in degrees : "); scanf("%lf", °reeVal); // Convert Degree Value to Radian radianVal = degreeVal * (PI/180); tanValue = tan(radianVal); printf("\n The Tangent, or Tan value of %f = %f ", degreeVal, tanValue); return 0; } |
OUTPUT
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