Supported: + - * / ^ ( ) and the functions sin cos tan asin acos atan sinh cosh tanh exp log ln log2 log10 sqrt abs floor ceil round min max pow atan2. Implicit multiplication (2x) works. Press Evaluate.
| Rule | Value | Rel. err |
|---|
Error columns compare against the Richardson-extrapolated limit, which is the standard way to estimate a true value without a closed form.
Distance between two points on the globe by the haversine formula, with a worked bearing and a sanity check against the flat-earth answer.
Add a million numbers the naive way and against Kahan compensation, and watch the error grow or stay flat.
Distances and coordination sequences on a lattice grid, for crystal and network geometry.
The logistic map from r 2.7 to 4.0, with the bifurcation diagram drawn live as you drag the growth rate.
Assemble a keyframe animation visually and copy the CSS, with duration, easing, fill mode and delay controls.
Set direction, wrap, justify and align on a live row or column and copy the resulting flex CSS.
Draw a grid from a text sketch where every row has the same cell count and named areas form rectangles, then copy the CSS.
Set the four corner radii and the shorthand, and see the rounded box redraw as you type.
