Margin, markup and break-even from cost and price, with the percentages that matter.
Project a pot to a retirement age, with contributions and growth per year.
Continuous-compounding interest and the e-folding half-life that goes with it.
Joules, calories, BTU, watt-hours and electron-volts converted exactly.
APA 7, MLA 9, Chicago 17 and Harvard from one form for books, journal articles, websites and reports, with each style's own author rules and a BibTeX tab.
Plain text CV in, styled PDF out.
WPM and accuracy over a timed passage.
Focus sessions with a chime, right in the tab.
