Rule opmcnphycrjmkvzk

[id: opmcnphycrjmkvzk] i(the radius of a circle is $r. what is the area?) => evalOutput(sqr(parseDouble($r))*pi())

Loaded as

[id: opmcnphycrjmkvzk] input(the radius of a circle is $r. what is the area?|the radius of an circle is $r. what is the area?) && $_1 = eval(sqr(parseDouble($r))*pi()) => output($_1)