- #1

vcsharp2003

- 897

- 177

- Homework Statement
- What is the meaning of ##(mod ~ \pi)## in the formula given below? This formula is taken from https://en.wikipedia.org/wiki/Inverse_trigonometric_functions

- Relevant Equations
- None

My understanding is that it probably means either ##+ \pi## or ## - \pi##, so that ##\pi## is either added to or subtracted from the first term, just like ##|x| = \pm x##.