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

`function csc(x)`

`csc = 1 / sin(x)`

`end function`

`function sec(x)`

`sec = 1 / cos(x)`

`end function`

`function cot(x)`

`cot = 1 / tan(x)`

`end function`

#### PHP

`function csc($x)`

`{`

`return (1 / sin($x));`

`}`

`function sec($x)`

`{`

`return (1 / cos($x));`

`}`

`function cot($x)`

`{`

`return (1 / tan($x));`

`}`

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

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