Inverse Symbolic Calculator

#1

Post by luu » Wed, Nov 13, 2024, 9:08 AM UTC

Inverse Symbolic Calculator
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Re: Inverse Symbolic Calculator

#2

Post by fzimmermann » Mon, Nov 18, 2024, 9:53 AM UTC

The limit of 5 decimal places makes it a bit impractical for my use case: While debugging, I often use fast numerical approximations to obtain out some number, that I know should somehow relate to some properties of the input, combined with some constants. But the precision is often less than 5 decimal places. Example: The operator norm of some operation or some integral -- is it pi/4inputsize? ln(2)inputsize? sqrt(1/2)*inputsize?

https://www.wolframalpha.com/ is really useful in that case

Re: Inverse Symbolic Calculator

#3

Post by IIAOPSW » Mon, Nov 18, 2024, 10:53 AM UTC

It fails on 42

Re: Inverse Symbolic Calculator

#4

Post by RicoElectrico » Mon, Nov 18, 2024, 10:59 AM UTC

IIAOPSW wrote: post #3

It fails on 42

It should return 1337%π (:

Re: Inverse Symbolic Calculator

#5

Post by Y_Y » Mon, Nov 18, 2024, 12:32 PM UTC

fzimmermann wrote: post #2

The limit of 5 decimal places makes it a bit impractical for my use case: While debugging, I often use fast numerical approximations to obtain out some number, that I know should somehow relate to some properties of the input, combined with some constants. But the precision is often less than 5 decimal places. Example: The operator norm of some operation or some integral -- is it pi/4 inputsize? ln(2) inputsize? sqrt…

Have you tried dividing by inputsize? Better yet vary inputsize and do a fit, maybe with something like Nutonian Formulize if you have no idea of the form.