A blog is that is all about mathematics and calculators, two of my passions in life.
Casio calculators have been flying off the shelves. So this fx-9750G II now fits in the current 9750/9860/Prizm family. Happy Start of School Year!
HP 15C: Error Function and Lower Tail Normal Cumulative Function Formulas Used Error Function erf(x) = 2 ÷ √π * ∫( e^(-t^2) dt, t = 0 t...
