Trigonometry, Part 1

Both ASP and PHP contain three basic trigonometry functions: sin(), cos(), and tan(). You may remember from school that there are three more basic trigonometry functions: cosecant, secant, and cotangent. It might be handy to have some functions for these too.

ASP

1. function csc(x)
2.     csc = 1 / sin(x)
3. end function
5. function sec(x)
6.     sec = 1 / cos(x)
7. end function
9. function cot(x)
10.     cot = 1 / tan(x)
11. end function

PHP

1. function csc($x)
2. {
3.     return (1 / sin($x));
4. }
6. function sec($x)
7. {
8.     return (1 / cos($x));
9. }
11. function cot($x)
12. {
13.     return (1 / tan($x));
14. }

Next week we'll build off some of these basic functions to make some special functions.