Put in a starting balance, a rate and a monthly contribution and watch the curve bend: final value, every year's interest, the exact doubling time and the Rule of 72 next to it. COMPOUND SAVINGS DOUBLING
| Year | Deposited | Interest that year | Interest total | Balance |
|---|
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.
Factor any integer, build a smallest-prime-factor sieve, and see the primes light up in a density grid.
Paste HTML, preview it live, export a styled PDF.
Pull a page range into a new PDF with one click.
Compression levels with a real similarity-to-original quality readout.
Compress many images at once, see the quality loss per file, save as ZIP.
