ansaurus

Question

Answer 1

A:

"math.log(#{"ln(5*x)"[/ln\((.*)\)/,1]})"

khelll 2009-10-03 07:53:27

Ok, now, is there any gem or library to generalize the solution, transforming all the math-like strings into their Ruby expression representation (with all the Math affixes)?

gmile 2009-10-03 07:57:45

You'd better search on github.com

khelll 2009-10-03 07:58:30

They're just strings: treat them like strings. It's of no consequence that they look like math functions.

glenn jackman 2009-10-03 22:50:00

Answer 2

+2 A:

"ln(5*x)".sub('ln','Math.log') #=> "Math.log(5*x)"

glenn jackman 2009-10-03 15:46:19

Not bad at all O_o

gmile 2009-10-03 19:41:26

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Interesting String casting

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