I sheared my original codes used often.
Don't hesitate to use these code, and please give me more pull requests!
This is an ordinary framework like a extension of Foundation. You can use this in iOS and macOS.
This is an framework like a extension of UIKit. You can use this in iOS.
As its name says, this supports numerical calculation like interporation, calculus, diffrencial equation, random number, fitting, and matrix. Unfortunately, this doesn't support tensor calculus yet.
As its name says, this (will) supports scientific processes like calculation of physical quantities and handling significant figures. Unfortunately, this support it in very nallow resion.
As its name says, this supports calculation of mass profile. This input is from xspec.