Arithmetic Course/Non Linear Function/Wave function

Basic Wave Functions

 * Trigonometric Triangle.svg

Sin
Referring to the diagram at the right, the six trigonometric functions of θ are:


 * $$ \sin \theta = \frac {\mathrm{opposite}}{\mathrm{hypotenuse}} = \frac {a}{h}$$
 * Sin.svg

Cos

 * $$ \cos \theta = \frac {\mathrm{adjacent}}{\mathrm{hypotenuse}} = \frac {b}{h}$$
 * Cos.svg

Tan

 * $$ \tan \theta = \frac {\mathrm{opposite}}{\mathrm{adjacent}} = \frac {a}{b}$$
 * Tan.svg

Cot

 * $$ \cot \theta = \frac {\mathrm{adjacent}}{\mathrm{opposite}} = \frac {b}{a}$$
 * Cot.svg

Sec

 * $$ \sec \theta = \frac {\mathrm{hypotenuse}}{\mathrm{adjacent}} = \frac {h}{b}$$
 * Sec.svg

CoSec

 * $$ \csc \theta = \frac {\mathrm{hypotenuse}}{\mathrm{opposite}} = \frac {h}{a}$$
 * Csc.svg