IUBio

math notation of FAQs (Is it "an" FAQ or "a" FAQ? <- Is this a FAQ?)

SCHLOSSER at ciit.org SCHLOSSER at ciit.org
Wed Sep 22 13:25:00 EST 1993


> From: eanv20 at castle.ed.ac.uk (John Woods)
> Subject: Sauro's Proposal
> Date: 22 Sep 93 14:34:47 GMT
> Sender: news at festival.ed.ac.uk (remote news read deamon)
> 
(snip)

>        So, where Jq means J-subscript-q and Ep means E-subscript-p, the
> multiple definitions of the Flux Control Coefficient for the Pth
> enzyme on the qth flux could be written as:
> 
>          Jq    d ln Jq    dJq Ep   dJq/Jq          % change in Jq
>         C   =  ------- =  --- -- = ------ =  lim   --------------
>          Ep    d ln Ep    dEp Jq   dEp/Ep   %-->0  % change in Ep
> 
> 
> or more `simply' as:
> 
> C_{E_p}^{J_q}
> 
> = {{d \ln J_q} \over {d \ln E_p}}
> 
> = {{dJ_q \over dE_p} {E_p \over J_q}}
> 
> = {{dJ_q/J_q} \over {dE_p/E_p}}
> 
> = {\lim_{\% \to 0} {{\ {\rm\;\%change\;in\;J_q}}
> \over
> {\ {\rm\;\%change\;in\;E_p}} }}
> 

This is OK for (La)Tex users; RTF would be very nice for other users, but
for general readability, without attempting the ASCII formatting above,
how about setting a "standard" intermediate format something like this:

C_{E_p}^{J_q}

= {d ln(J_q)}/{d ln(E_p)}

= {d J_q/d E_p}*{E_p/J_q}

= {d J_q/J_q}/{d E_p/E_p}

= lim[% -> 0] {% change in J_q/% change in E_p}

This is close to (La)Tex (only requiring some cuts and a few replacements
for translation), *is easily readable as is*, and should also be easily 
translatable to other word processors.

Paul Schlosser




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