Author Topic: General Math help (Read 12951 times)

Freyaday · « **Reply #15 on:** April 17, 2011, 01:32:02 am »

[] is not the notation for the floor function. They're just brackets.
|_b_|/c=|_a_|<=a<=|^-a^-|

willrandship · « **Reply #16 on:** April 17, 2011, 01:35:11 am »

Square brackets are the de-facto way of typing floor functions, IIRC, because I don't have a reverse-L key

But anyways, solve int(a)*int(b)=a known integer

The hard part is that there is no inverse int( function

Freyaday · « **Reply #17 on:** April 17, 2011, 01:39:48 am »

(int(b)=1 and int(a)=a) or a=0

willrandship · « **Reply #18 on:** April 17, 2011, 01:46:10 am »

that's not all solutions though......

And a=0 doesn't work, unless c is 0, which it isn't

Freyaday · « **Reply #19 on:** April 17, 2011, 01:48:48 am »

It is for
int(b)int(a)=a
which is what you posted, innit?

willrandship · « **Reply #20 on:** April 17, 2011, 01:50:29 am »

no, int(b)int(a)=c.

Oh, I see, by "a known integer" I meant int(c) but that you know c

sorry.

Here's a hex number to start you off. It's easy because there's only 2 sets of results!

0xc3b3a7015c04299ff3a25f104e2285c1ec2d55471e6208959d0f6981b2fa2c6d3e316f9364d5eb5c7789e142b75bfaf402e7e02fac0cb09f6419db1f44679f8bbcca142f1d312feb095708ef175a4ef80271321e7240f0d854c90a74fc59209cdf80aa8f85ae3b948a3ce55c69cd050098d5a79aebbc241cc642b106b1af2cb7

Freyaday · « **Reply #21 on:** April 17, 2011, 02:06:41 am »

If you want to get rid of the floors, that'll involve inequalities, which I don't think you're looking for. If you don't mind having floors, then it's {int(a)=c/int(b) c|int(b)

Author Topic: General Math help (Read 12951 times)

Freyaday

Re: General Math help

willrandship

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Freyaday

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willrandship

Re: General Math help

Freyaday

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willrandship

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Freyaday

Re: General Math help