Tc calculator - JS clone of BC calculator
Tc is Chrome app, a simple offline BC-like calculator for programmers with support for user defined functions and history. There are no buttons (unlike XCalc) but you simply type expression you want to evaluate. Tc use plain JS for evaluation so you can use almost any valid JS code. There are over 60 built in functions, very extensive help. Available at: https://chrome.google.com/webstore/detail/tc-calculator/naleoogmjhkihkegmfmjmeignmbcojkl