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Adam Larios

Partial Differential Equations, Fluid Dynamics, and Numerical Analysis

a l a r i o s @ u n l . e d u

Math GIFs

Some animated GIFs that demonstrate basic trigonmetric concepts.

The Sine Function

Take a look: "sin(t)" is just the height of a point on the unit circle when it has gone around "t" radians from its starting place on the positive x-axis.

Sine and Cosine

Now that you know where sin(t) comes from, "cos(t)" is just the horizontal distance of a point on the unit circle to the y-axis when it has gone around "t" radians from the starting place.

Radians

A radian is just the angle you get when you go around a circle the length of its radius. They are much more convient in mathematics than degrees.

Tangent

Arctangent