### Trigonometry

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The math evaluation supports trigonometry equations,

The evaluation of trigonometric functions by default is in radians, e.g. sin(\pi/2) == 1, but it can be switched to degrees using the Special Handling Options:

Special symbols like π can be entered via LaTex, e.g. \pi or via the keypad.

There is a custom keypad with the most common Trig related keys can be attached to the questions. Go to the Advanced Options to select the keypad, and then navigate down the left-hand side:

In addition, there is a more comprehensive set of keys in the full keypad.

Angles:

Angle operations understand the equivalence of forms such as \angle ABC = \angle CBA

B is the common vertex and arms with A and C can be reversed.