// multi-utility computation suite · offline · instant · precise
┌──────────────────────────┐
│ [c] calcalyst_ │
│ computation suite │
└──────────────────────────┘
// select a module to initialize
/ search↵ open firstesc close
// adsenseEMPTY_LEADER_SLOT728×90
// adsenseMOBILE_ANCHOR_SLOT320×50
// keyboard_shortcuts
/focus search
↑↓navigate module list
Enter
open first result from search
open highlighted
compute when module is open
compute when focused in a field
Escclose module · clear selection
⌫
math.geometry-rectangle Calculator
Calculates area, perimeter, and diagonal length of a rectangle or square from width and height, and checks the golden ratio. The diagonal of a rectangle with sides a and b is √(a² + b²) — Pythagorean theorem in two dimensions.
Inputs
W
Horizontal extent perpendicular to the length.
H
Vertical measurement. For health calculators, typically standing height without shoes.