Each discount applies to the price left by the one before it, exactly as a till does. A zero means "no second discount".
| Step | Discount | Amount off | Running price |
|---|
Critical angle from static friction, then the slide or hold verdict, acceleration down the ramp and the work done against friction.
Estimate doubling time and project compound growth, with the exact doubling time beside the estimate so you can see where the rule drifts.
Tax owed, effective rate and marginal rate from gross income and deductions, using a fixed published bracket table so the arithmetic is reproducible.
Discount a lump sum, ordinary annuity or annuity due back to today, and see the interest the discount rate is actually charging you.
Convert text to Grade 1 Unicode Braille and back, with capital and number signs handled properly.
Draw a signature with mouse, pen or finger and download it as a transparent PNG.
Encrypt or decrypt with a repeating keyword, keeping case and leaving spaces and punctuation in place.
Encode text to RFC 4648 Base32 and decode it back, with padding control and a byte count.
