Weight Watcher Points Calculator (Demo) Weight Watcher Points Calculator (Demo) Disclaimer: This tool is not affiliated with Weight Watchers®. The formulas used are approximate and for educational/demonstration purposes only. Official
Arccos Calculator (Inverse Cosine) The Arccos function (cos-1) returns the angle whose cosine is a given number. Input must be between -1 and 1. cos-1(x) = Output Format: Radians Degrees