view tmflry/@ @ 7403:164735adce20

<b_jonas> learn A stalagmite is an upside-down stalctite.
author HackBot
date Sun, 17 Apr 2016 19:02:32 +0000
parents d3c294a55f99
children
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|a+b@| = { √(a²-b²) if a²-b² ≥ 0 ; i√(a²-b²) if a²-b² < 0 }