Arithmetic Course/Non Linear Function/Wave function

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Basic Wave Functions[edit]

Trigonometric Triangle.svg

Sin[edit]

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[edit]

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

Tan[edit]

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

Cot[edit]

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

Sec[edit]

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

CoSec[edit]

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