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RootM Complex Number Calculator for Palm OS

RootM™ 1.2 Features

Complex Number RPN Calculator for Palm OS

RootM™ is software that turns your PalmOS handheld computer into a complex number RPN calculator. The software has a natural calculator interface that allows you to easily enter imaginary numbers and access the many scientific functions. Sqrt(-1) or asin(2) are valid computations, producing complex results. more info...

RootM 1.2.3 $24.95
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MathU function menu


MathU preferences


MathU registers

General Features

  • Natural calculator interface
  • Easy complex number input via +i and /_ (angle) separators
  • Personalizable color keyboard (6 color choices, 6 on a grayscale device, 2 on a B&W device)
  • IEEE Double precision accuracy (about 16 digits and full IEEE range 2.3e-308 to 1.7e+308)
  • 16 element stack
  • 30 key keyboard (3 functions per key)
  • Function pop-up on main screen provides access to all built-in functions
  • Graffiti input, copy and paste
  • 20 digit display with SCI, FIX, and ENG formats. Exponents from -308 to 308.
  • Status indicators for shift state, angle mode, and financial annuity mode.
  • Degrees, radians, and grads angle modes
  • Preferences to set the number of digits, angle mode, display format, wordsize
  • Real/Imag or Magnitude/Phase complex display format
  • Built-in quick reference
  • Extensive documentation


  • 16 element stack (capable of storing complex numbers)
  • 20 global registers (10 are directly accessible via the keyboard)
  • Ability to swap primary and secondary registers.
  • stack and register functions: clstk, clreg, clx, p<>s, x<>y
  • stack roll up and roll down via hardware scroll buttons.
  • View registers and stack
  • Quick stack pop-up and selection (tap display)

Complex-valued Scientific Functions

  • sin, cos, tan, sin-1, cos-1, tan-1, atan2
  • sinh, cosh, tanh, asinh, acosh, atanh
  • ln, lnp1, log, ex, expm1, 10x, yx, x2, sqrt, 1/x
  • conj, abs, arg, R->C, C->R, R->P, P->R

Real-valued Scientific Functions

  • int, frac, floor, ceil, abs, mod, chop, pi
  • deg, rad, hours, H.MS, seconds

Financial Functions

  • N (number of periods)
  • i (percent interest per period)
  • PMT (payment per period)
  • PV (present value)
  • FV (future value)
  • CLFIN (clear financial registers)
  • Annuity preference (toggle between payments due at the beginning of the period and payments due at the end of the period)
  • View financial registers

Statistics Functions

  • S+ (accumulate statistics)
  • S- (remove data from statistics)
  • mean, std, rand
  • %, % change, N! (factorial)
  • clrstats (clear statistics registers)
  • View statistics registers

Number Base Functions

  • hex, dec, oct, bin
  • modular addition, modular subtraction, modular division, modular multiplication
  • two's complement
  • and, or
  • wordsize preference (up to 48 bits)

Creative Creek, MathU, MathU Pro, RootM and One+One are trademarks of Creative Creek, LLC. All other tradenames and trademarks on the site are of their respective owners.