C!
mouse by Footprints
memory management by Carthag
prime number language by Footprints, m_turner, enth, C-Dawg
Landau equivalent by aneurin, Gritchka
MathML by The Alchemist, Kalkin
Publishing scientific documents on the Web by ReiToei, pimephalis, BrianShader
Frobenius' theorem by BrianShader
Frost protection thanks to water by Chiisuta
shape from shading by BrianShader
golf ball flight by riverrun
capacitor by ac_hyper, koreykruse
noise pollution by BlueDragon
The Matrix Reloaded and nmap by ariels
Levenshtein distance by Carthag, m_turner
The Mission by sid
"1^p" p prime language by Brontosaurus
FreeBSD jail by Senso
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Frobenius' theorem
Frost protection thanks to water
Memory layers
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Last updated June 5 2004 (my birthday !)
Posting Math on E2
This document explains how to embedd scientific formulae in your posts on E2. The best way to add formulae in your posts is probably to write them with the TeX syntax (because it's very close to natural syntax) and then use the superdoc to generate the corresponding MathML tags. Here are typical scripts that you will find most useful.Simple equations
Sample : 2x+3=0TeX script : 2x+3=0
MathML script :
<math><mrow> <mn>2</mn> <mi>x</mi> <mo>+</mo> <mn>3</mn> <mo>=</mo> <mn>0</mn> </mrow></math>Numbers are enclosed by a mn tag. Identifiers are enclosed by a mi tag. Operators are enclosed by a mo tag.
Fractions and square roots
Sample : (a+1)/(b+1) + sqrt(c)TeX script : \frac{a+1}{b+1} + \sqrt{c+1}
MathML script :
<math><mrow> <mfrac> <mrow><mi>a</mi><mo>+</mo><mn>1</mn></mrow> <mrow><mi>b</mi><mo>+</mo><mn>1</mn></mrow> </mfrac> <mo>+</mo> <msqrt> <mrow><mi>c</mi><mo>+</mo><mn>1</mn></mrow> </msqrt> </mrow></math>
Parentheses and other delimiters
Sample : f(a/b)TeX script : f \left( \frac{a}{b} \right)
MathML script :
<math><mrow> <mi>f</mi> <mfenced open="(" close=")"> <mfrac><mi>a</mi><mi>b</mi></mfrac> </mfenced> </mrow></math>It is possible to use different kinds of delimiters, for instace brackets and curly braces.
Polynomials
Sample : ax3 + bx2 + cx + dTeX script : ax^3 + bx^2 + cx + d
MathML script :
<math><mrow> <mi>a</mi> <msup> <mi>x</mi> <mn>3</mn> </msup> <mo>+</mo> <mi>b</mi> <msup> <mi>x</mi> <mn>2</mn> </msup> <mo>+</mo> <mi>c</mi> <mi>x</mi> <mo>+</mo> <mi>d</mi> </mrow></math>
Sequences
Sample : un+1 = 1 - un2TeX script : u_{n+1} = 1 - u_n^2
MathML script :
<math><mrow> <msub> <mi>u</mi> <mrow> <mi>n</mi> <mo>+</mo> <mn>1</mn> </mrow> </msub> <mo>=</mo> <mn>1</mn> <mo>-</mo> <msubsup> <mi>u</mi> <mi>n</mi> <mn>2</mn> </msubsup> </mrow></math>
Series
Sample : Σn=0+∞ anxnTeX script : \sum_{n=0}^{+\infty} a_n x^n
MathML script :
<math><mrow> <munderover> <mo>∑><mo> <mrow><mi>n<mi><mo>=<mo><mn>0<mn><mrow> <mrow><mo>+<mo><mo>∞<mo><mrow> <munderover> <msub> <mi>a<mi> <mi>n<mi> <msub> <msup> <mi>x<mi> <mi>n<mi> <msup> <mrow></math>
Integrals
Sample : ∫0∞ f(t) dtTeX script : \int_{0}^{\infty} f(t) dt
MathML script :
<math><mrow> <munderover> <mo>∫</mo> <mn>0</mn> <mo>∞</mo> </munderover> <mi>f(t)</mi> <mi>dt</mi> </mrow></math>
Vectors
Sample : u→TeX script : \vec{u}
MathML script :
<math><mrow> <mover> <mi>u</mi> <mo>→</mo> </mover> </mrow></math>