The arithmetic functions available in Lispix are those built into LISP, plus whatever one wants to write (in LISP) and load using 'TOOLS / load tool'.

• LISP built in functions:
  • Unary (one argument):
    • zero-p plus-p minus-p odd-p even-p
    • conjugate float phase
    • exp log sqrt isqrt
    • abs truncate floor ceiling round signum
    • sin cos tan cis asin acos asin atan sinh cosh tanh asinh acosh atanh
  • Binary (two and possibley more arguments):
    • = /= < > <= >=
    • + - * /
    • lcm gcd expt mod rem
    • logand logior logxor logeqv logeqv lognot
    • max min
  • Multiple arguments (some of them, anyway):
    • = /= < > <= >= + - * / max min
• Special
  • sum-norm (a b c d e...) returns a/(a+b+c...)