Mobi Calculator

Changes in the calculation behavior

Several calculation rules have been corrected or expanded in Mobi Calculator 2 compared with Mobi Calculator 1.

After carefully reviewing your feedback and conducting our own research, we have made several changes to the calculation behavior in Mobi Calculator 2 compared to Mobi Calculator 1.

Most of these changes fix incorrect behavior or add support for cases that were not handled before.

Order of operations for exponents with negative numbers

  • Mobi Calculator 1: -2^2 = 4
  • Mobi Calculator 2: -2^2 = -4

Default order of operations for exponents

You can change this in Settings → Calculations.

  • Mobi Calculator 1: 2^3^2 = 64 — left to right
  • Mobi Calculator 2: 2^3^2 = 512 — right to left

Fixed cube root for negative numbers

  • Mobi Calculator 1: ³√(-8) = error
  • Mobi Calculator 2: ³√(-8) = -2

Fixed order of operations for n-th roots

  • Mobi Calculator 1: -³√(8) = 0.5
  • Mobi Calculator 2: -³√(8) = -2

Fixed order of operations for factorial

  • Mobi Calculator 1: -5! = error
  • Mobi Calculator 2: -5! = -120

Changed the integer division operator

  • Mobi Calculator 1: 5 \ 2 = 2
  • Mobi Calculator 2: 5 ÷ 2 = 2

Changed the time calculation format

  • Mobi Calculator 1: 2.05 + 0.60 = 3.05
  • Mobi Calculator 2: 2h5m + 60m = 3h5m