Applets
Small programs to try things out and to practise – some built here, some found elsewhere. All of them run without signing in.
Unit prefixes and scientific notation
From the prefix to the power of ten and back
Practice with the 24 SI prefixes: take a quantity written with a prefix into scientific notation, or the other way round. Direction and range of prefixes are up to you; no sign-in needed.
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TeXercises
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