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Aug 12, 2009, 2:40:59 PM8/12/09

to Google Chart API

E.g.

<img alt="S=\frac{a_1.(r^n-1)}{r-1}" eeimg="1" src="http://

chart.apis.google.com/chart?

cht=tx&chs=1x0&chf=bg,s,FFFFFF00&chco=000000&chl=S%3D

%5Cfrac%7Ba_1.(r%5En-1)%7D%7Br-1%7D" style="vertical-align:middle">

I.e. the raw URL:

http://chart.apis.google.com/chart?cht=tx&chs=1x0&chf=bg,s,FFFFFF00&;chco=000000&chl=S%3D%5Cfrac%7Ba_1.(r%5En-1)%7D%7Br-1%7D

With cht=tx (TeX?)

and alt="S=\frac{a_1.(r^n-1)}{r-1}" is equivalent to chl=S%3D%5Cfrac

%7Ba_1.(r%5En-1)%7D%7Br-1%7D

<img alt="S=\frac{a_1.(r^n-1)}{r-1}" eeimg="1" src="http://

chart.apis.google.com/chart?

cht=tx&chs=1x0&chf=bg,s,FFFFFF00&chco=000000&chl=S%3D

%5Cfrac%7Ba_1.(r%5En-1)%7D%7Br-1%7D" style="vertical-align:middle">

I.e. the raw URL:

http://chart.apis.google.com/chart?cht=tx&chs=1x0&chf=bg,s,FFFFFF00&;chco=000000&chl=S%3D%5Cfrac%7Ba_1.(r%5En-1)%7D%7Br-1%7D

With cht=tx (TeX?)

and alt="S=\frac{a_1.(r^n-1)}{r-1}" is equivalent to chl=S%3D%5Cfrac

%7Ba_1.(r%5En-1)%7D%7Br-1%7D

Aug 12, 2009, 3:40:23 PM8/12/09

to google-c...@googlegroups.com

You might want to look at

http://www.mathtran.org/wiki/index.php/Web_service

which has, since 2007, been making TeX typeset formulas available as a

public service.

(I'm the main developer of MathTran.)

Google's service doesn't seem to be using TeX for typesetting: compare

http://chart.apis.google.com/chart?cht=tx&chl=%201%20\left\langle%20ddd%20\right\rangle%202

http://www.mathtran.org/cgi-bin/mathtran?D=5;tex=%201%20\left\langle%20ddd%20\right\rangle%202

If anyone from Google is listening: I'd rather you contributed to

MathTran than wrote your own pseudo-TeX. And you'll find it easier in

the long run.

--

Jonathan

Aug 13, 2009, 6:30:39 AM8/13/09

to Google Chart API

Jonathan thank you for your feedback.

It looks like the Google Chart API supports a bit the same (La)TeX

syntax as your application does, with as at least one difference that

\displaystyle seems to be the default display mode for Google Chart

and can be omitted

Compare:

http://chart.apis.google.com/chart?cht=tx&chl=\sum_1^\infty\frac{1}{n^2}

with

http://www.mathtran.org/cgi-bin/mathtran?tex=\displaystyle\sum_1^\infty\frac{1}{n^2}

But also (showing another difference):

http://chart.apis.google.com/chart?cht=tx&chl=\root+3+\of+{1+%2B+x^2}

versus

http://www.mathtran.org/cgi-bin/mathtran?tex=\root+3+\of+{1+%2B+x^2}

making Mathtran the better renderer.

I can understand you would like Google's programmers to support your

initiative instead of re-inventing the wheel, but that's Google for

you: the NIH *) syndrome plagues the entire development at Google.

To find out more about the differences between Google Chart's and the

mathtran.org implementation of TeX can you point me to a source, that

will help me determine this?

*) NIH: http://en.wikipedia.org/wiki/Not_Invented_Here

On Aug 12, 9:40 pm, Jonathan Fine <jf...@pytex.org> wrote:

> ahab wrote:

> > E.g.

> > <img alt="S=\frac{a_1.(r^n-1)}{r-1}" eeimg="1" src="http://

> > chart.apis.google.com/chart?

> > cht=tx&chs=1x0&chf=bg,s,FFFFFF00&chco=000000&chl=S%3D

> > %5Cfrac%7Ba_1.(r%5En-1)%7D%7Br-1%7D" style="vertical-align:middle">

>

> > I.e. the raw URL:

> >http://chart.apis.google.com/chart?cht=tx&chs=1x0&chf=bg,s,FFFFFF00&;...

It looks like the Google Chart API supports a bit the same (La)TeX

syntax as your application does, with as at least one difference that

\displaystyle seems to be the default display mode for Google Chart

and can be omitted

Compare:

http://chart.apis.google.com/chart?cht=tx&chl=\sum_1^\infty\frac{1}{n^2}

with

http://www.mathtran.org/cgi-bin/mathtran?tex=\displaystyle\sum_1^\infty\frac{1}{n^2}

But also (showing another difference):

http://chart.apis.google.com/chart?cht=tx&chl=\root+3+\of+{1+%2B+x^2}

versus

http://www.mathtran.org/cgi-bin/mathtran?tex=\root+3+\of+{1+%2B+x^2}

making Mathtran the better renderer.

I can understand you would like Google's programmers to support your

initiative instead of re-inventing the wheel, but that's Google for

you: the NIH *) syndrome plagues the entire development at Google.

To find out more about the differences between Google Chart's and the

mathtran.org implementation of TeX can you point me to a source, that

will help me determine this?

*) NIH: http://en.wikipedia.org/wiki/Not_Invented_Here

On Aug 12, 9:40 pm, Jonathan Fine <jf...@pytex.org> wrote:

> ahab wrote:

> > E.g.

> > <img alt="S=\frac{a_1.(r^n-1)}{r-1}" eeimg="1" src="http://

> > chart.apis.google.com/chart?

> > cht=tx&chs=1x0&chf=bg,s,FFFFFF00&chco=000000&chl=S%3D

> > %5Cfrac%7Ba_1.(r%5En-1)%7D%7Br-1%7D" style="vertical-align:middle">

>

> > I.e. the raw URL:

>

> > With cht=tx (TeX?)

> > and alt="S=\frac{a_1.(r^n-1)}{r-1}" is equivalent to chl=S%3D%5Cfrac

> > %7Ba_1.(r%5En-1)%7D%7Br-1%7D

>

> You might want to look at

> http://www.mathtran.org/wiki/index.php/Web_service

> which has, since 2007, been making TeX typeset formulas available as a

> public service.

>

> (I'm the main developer of MathTran.)

>

> Google's service doesn't seem to be using TeX for typesetting: comparehttp://chart.apis.google.com/chart?cht=tx&chl=%201%20\left\langle%20ddd%20\right\rangle%202http://www.mathtran.org/cgi-bin/mathtran?D=5;tex=%201%20\left\langle%20ddd%20\right\rangle%202
> > With cht=tx (TeX?)

> > and alt="S=\frac{a_1.(r^n-1)}{r-1}" is equivalent to chl=S%3D%5Cfrac

> > %7Ba_1.(r%5En-1)%7D%7Br-1%7D

>

> You might want to look at

> http://www.mathtran.org/wiki/index.php/Web_service

> which has, since 2007, been making TeX typeset formulas available as a

> public service.

>

> (I'm the main developer of MathTran.)

>

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