This service calculates the result of a selected formula within all Cocoa-applications (e.g. Textedit, Mail, Stickies, Notes, ProjectBuilder, Fire, OmniWeb or TeXShop) and appends the result to the formula or replaces the formula with the result. In addition there’s the possibility to display the result in a panel without modifying the text. So there’s no more need to launch the Calculator if you only want to calculate some values immediately within text views or dialog fields.
– floating point values: x.y or x,y
– add, substract, multiply, divide, modulo, exponential: +-*/%^
– assign: = (Assigned variables are persistent and still available the next time you?re going to use CalcService)
– sign and parenthesis: +-()
– exp, exp10, exp2, ln, log, log10, log2
– sin/asin, cos/acos, tan/atan
– sqrt, abs, sign
– fact (factorial for statistics, combinations and variations etc.)
– Mathematics: pi, e
– Physics: c, g, e0, u0, qe, me, mp, mn
More info and download link here.