1. The Idea
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Use implicit differentiation to find the slope: Evaluate when : The tangent line at is parallel to any vector with slope , e.g., .
Parametric equation:
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Write LaTeX, then translate to HTML
Write SGML or XML, then
Translate to LaTeX
Translate to XHTML + MathML
Translating from LaTeX involves
Carefully written LaTeX source
Customized tuning
Hidden learning curve
Must first learn how
Write with LaTeX-like syntax
Use the vocabulary of an SGML document type
No pages
No vertical lengths
Relative horizontal lengths
Content, yes.
Style, no.
Fonts, no.
No declaration style markup (like {\centering ...})
Braced zones provide logical grouping but not scope.
\begin{display} ... \end{display} is the same as \display{ ... }
No space allowed between a command and its arguments or between its successive arguments.
The 33 non-alphanumeric but printable ASCII characters may all be referenced by names, e.g., \tld; for “~” is useful in URLs.
Counters ride with labels.
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Save it as “smalldoc.glm”.
At a command line enter
| mmkg smalldoc . |
Read the scroll.
Inspect the yield:
The User Guide (PDF) (Source)
The Manual (PDF) (Source)
Port of an article from The New Journal of Mathematics
