Scientific calculator for Android
The classic calculator, rebuilt for your phone
Radix 83 brings the feel of a classic graphing calculator's home screen to your phone: a dot-matrix LCD, sculpted keys that sink when you press them, and the keystrokes you already know.
Get it on Google Play
Free · No ads · Works offline
A closer look
Menus, themes and errors that point straight at the problem.
Built for everyday math
For homework, quick sums and everything in between, without the clutter.
The classic way of working
- Type the whole expression, press ENTER, and keep the result on screen
- Ans, implied multiplication (2X, 3(4), 2π) and a separate (−) key
- Unclosed parentheses close themselves
- Results rounded to 14 significant digits, so 0.1+0.2 shows .3
Scientific functions
- sin, cos, tan and their inverses, in degrees or radians
- log, ln, 10ˣ, eˣ, √, ³√, ˣ√, x², x³, x⁻¹, ^ and !
- ►Frac, ►Dec, abs, round, iPart, fPart, int, min, max, lcm, gcd
- rand, nPr, nCr, and the tests =, ≠, >, ≥, <, ≤
Variables and memory
- Store values in A–Z and θ with STO→, and recall them with RCL
- Scroll up through past calculations and paste any expression or result
- HIST lists every calculation, VARS shows every variable
- Everything is saved between sessions
Make it yours
- Three color themes: Slate, Ice and Ember
- Three LCD styles: Cool gray, Classic and Backlit
- Three screen resolutions: 16×8, 24×12 or 32×16 characters
- Full keypad with a shortcut row, or Compact for taller keys
Private by design
No ads, no accounts and no tracking. Radix 83 needs no permissions, has no internet access and keeps everything on your phone.