How do I do secant calculation in Processing?

Bred_Hacker

I am trying to calculate the angle of a terminal angle in a circle. The line is a normalized vector that follows the mouse. Is there a way to use secant in Processing so I can do this? Or is there any other way to do this?

kfrajer

In addition to sine, cosine, and tangent, there are three other trigonometric functions you need to know for the Math IIC: cosecant, secant, and cotangent. These functions are simply the reciprocals of sine, cosine, and tangent. Cotangent is the reciprocal of tangent.

So for secant, you should be able to do:

float theta=PI/3.0;               /// or 60 degrees
float value = 1.0/cos(theta);

Kf