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iPhone / iPad
  • Utilities
  • Education
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Inspired by the legendary TI-86.


Mathematical Constants: e, i, j, pi
Trig Functions: sin, cos, tan, arcsin, arccos, arctan
Hyperbolic Functions: sinh, cosh, tanh, arcsinh, arccosh, arctanh
Logarithmic Functions: log-10, log-2, log-e
Other Functions: square root, factorial, negate, inverse, absolute value, complex argument, erf, rand
Binary Operators: add, subtract, multiply, divide, exponent, modulo

Complex / imaginary numbers are fully supported!


Enter numbers in decimal, octal, or hexadecimal. Change the number base right after computing a result to convert the result to the new base. All numbers are treated as 32-bit (4-byte) unsigned integers.

Bitwise Operators: and, nand, or, nor, xor, xnor, shift left logical, shift right logical, rotate left, rotate right
Bitwise Functions: not (1's complement), 2's complement
Binary Operators: add, subtract, multiply, divide, modulo


Tap on the screen to position the cursor. Drag the screen vertically to scroll.

ALPHA-ALPHA: alpha lock (upper case)
2nd-ALPHA-ALPHA: alpha lock (lower case)

Use the "Entry" function to recall previous entries (up to 20). Use the "Ans" variable to get the previous result.

Use the "STO=>" function to store a value into a variable. Variable names can be a maximum of 5 upper- or lower-case letters.

Don't forget to look in the Settings app for more options (see screenshot).