math

unary operators not always taking precedence over binary
modulus-vs-remainder.
fraction-calculators-interface-without over.key
2013/05/free-online-books.

Numerical Recipes in C: The Art of Scientific Computing, Second Edition
William H. Press


Numerical Recipes Example Book C (The Art of Scientific Computing)
William H. Press



Numerical Recipes in Fortran 90: Volume 2, Volume 2 of Fortran Numerical Recipes: The Art of Parallel Scientific Computing
William H. Press


Surely You're Joking, Mr. Feynman! (Adventures of a Curious Character)
Richard P. Feynman