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Function Details : tan

doubletan(double x) ;

Return Type : double

Double-precision floating point (±1.7E±308, ~15 decimal digits)

Read about return values of tan function .

1st Parameter Type : double

Double-precision floating point (±1.7E±308, ~15 decimal digits)

1st Parameter

The angle in radians for which the tangent value is to be computed.

Read more about parameters of tan in parameters section

The tanfunction in C language Calculates the tangent of the specified angle in radians.

The tan function computes the tangent of x (measured in radians). Mathematically, it is equivalent to sin(x) / cos(x). The tangent function is periodic with a period of π radians.

The tanfunction takes 1 parameter:

•
double `x`: The angle in radians for which the tangent value is to be computed.

Computes the tangent of the angle `x` (measured in radians). Returns the result as a `double`. The function may produce undefined behavior for angles where the tangent is not finite (e.g., π/2 + kπ, where k is an integer).

The tan function return value :

Returns the tangent of x
If x is infinite, a domain error occurs and the function returns NaN
If x is NaN, NaN is returned

Output

This example calculates the tangent of 45 degrees (converted to radians).