ASKSAGE: Sage Q&A Forum - RSS feedhttps://ask.sagemath.org/questions/Q&A Forum for SageenCopyright Sage, 2010. Some rights reserved under creative commons license.Mon, 21 Jan 2013 08:49:01 +0100Can you help, please.https://ask.sagemath.org/question/9718/can-you-help-please/I am anything else but a math geek so I am stunned by the following:
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C<>7
ASCII
x(0)=0
x(n+1)=C(n) mod(Y/17)
y(0)=0
y(n+1)=y(n)+(C(n) mod(X/80))+1
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What kind of calculation or equation is that? I am especially confused by the case change of x and y on the left to upper case on the right. Does this have a special meaning or is it just a mistake?
Mon, 21 Jan 2013 06:26:49 +0100https://ask.sagemath.org/question/9718/can-you-help-please/Comment by ppurka for <p>I am anything else but a math geek so I am stunned by the following:</p>
<hr/>
<p>C<>7
ASCII</p>
<p>x(0)=0
x(n+1)=C(n) mod(Y/17)</p>
<p>y(0)=0
y(n+1)=y(n)+(C(n) mod(X/80))+1</p>
<hr/>
<p>What kind of calculation or equation is that? I am especially confused by the case change of x and y on the left to upper case on the right. Does this have a special meaning or is it just a mistake?</p>
https://ask.sagemath.org/question/9718/can-you-help-please/?comment=18371#post-id-18371Sorry, but what does this have to do with Sage?Mon, 21 Jan 2013 07:19:09 +0100https://ask.sagemath.org/question/9718/can-you-help-please/?comment=18371#post-id-18371Comment by kcrisman for <p>I am anything else but a math geek so I am stunned by the following:</p>
<hr/>
<p>C<>7
ASCII</p>
<p>x(0)=0
x(n+1)=C(n) mod(Y/17)</p>
<p>y(0)=0
y(n+1)=y(n)+(C(n) mod(X/80))+1</p>
<hr/>
<p>What kind of calculation or equation is that? I am especially confused by the case change of x and y on the left to upper case on the right. Does this have a special meaning or is it just a mistake?</p>
https://ask.sagemath.org/question/9718/can-you-help-please/?comment=18370#post-id-18370I agree. This looks like a difference equation to me. But it isn't a Sage question - you may want to try math.stackexchange.org, though I suggest giving a reference and more details if you want to ask someone.Mon, 21 Jan 2013 08:49:01 +0100https://ask.sagemath.org/question/9718/can-you-help-please/?comment=18370#post-id-18370