Returns the tangent of value in radians

tan(x)

Returns: double

In a right angled triangle tan(x) = Opposite / Adjacent. If you want to use degrees instead of radians use function dtan().

This function will accept any number except pi/2 plus-minus multiples of pi. In that case the function return error due to returning infinity.

double value;
value = tan(5);

This code will set value to -3,380515.

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