Ellipsoid volume from 3 dimensions, ellipse area from 2, or spherical volume from 1 — with optional interval change vs a prior study.
Current dimensions
3 dims → volume (π/6·abc) · 2 dims → area (π/4·ab) · 1 dim → sphere (π/6·d³)
paste from dictation — separators can be spaces, x, ×, *, “by”, or commas. Add “mm” if in millimeters (else cm). Each value is a full axis diameter.
Or read this into your dictation in one line:4.1 by 3.2 by 2.8 centimeters on October 1, 2026, previously 3.5 by 2.9 by 2.4 centimeters on March 15, 2025. Put your own sizes and dates in. The prior size and both dates fill in below, and the doubling time appears if it grew. With both dates you can drop “previously”; the later date is taken as the current study. Leave out the first date and the current study is dated today. Typed forms work too (“4.1 x 3.2 x 2.8 cm on 10/01/2026”), as do “prior”, “was” and “compared to”.
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Previous dimensions
what were the dimensions before?
must yield the same measure as the current study — a volume (1 or 3 dims) compares to a volume, an area (2 dims) to an area.