JavaScript Math_trig Guide
Math trigonometric functions: sin, cos, tan, asin, acos, atan, atan2 for angles and wave calculations. The guide walks through Trig Functions. `Math.sin(angle)` — sine (radians). `Math.cos(angle)` — cosine. `Math.tan(angle)` — tangent. `Math.asin(x)` / `Math.acos(x)` — arc sine/cosine. `Math.atan(x)` — arc tangent. `Math.atan2(y, x)` — arc tangent of y/x (full quadrant). Convert: `radians = degrees * (Math.PI / 180)`, `degrees = radians * (180 / Math.PI)`. The guide is organized into 1 sections that build on each other, each pairing a prose explanation with runnable code. Related guides: Arrays, Strings, Numbers, Math, Date. This is one of 145 JavaScript guides on JS Reference — see the full list on the guides page. Practice what you learn in the JavaScript playground, and look up any unfamiliar term in the JavaScript glossary.