math on wiki pages
testing the < math > tag
Some formulas are displayed with HTML.
(The top line has extra spaces in the math tag
to keep it from doing its thing and leave TeX is visible.)
< math > y = \alpha + \beta < /math >
y = \alpha + \beta
Others will display with a png image.
In either case, the software should do the
right thing automatically.
< math >x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}< /math >
x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}
other ways
There are a few other ways to input other characters, too:
HTML special symbols (e.g. "& alpha ;" without
the spaces and utf-8 characters. How this shows up
for you will depend on your browser and available fonts.
Here's the lowercase greek alphabet in utf-8 character.
(I used the Mac "Show Keyboard Palette" under "Keyboard"
to type the characters.)
α β γ δ ε ζ η θ ι κλ μ ν ξο π ρ σ ς τ υ φ χ ψ ωϑ ϒ ϕ ϖ
Or using HTML symbols (e.g. "& alpha ;" without the spaces).
α β γ ...
or within individual math tags
\alpha
\beta
\gamma
...
or all in one tag
\alpha \beta \gamma
\frac{1}{\alpha + \gamma}
\frac{1}{1+\frac{1}{1+1}}
Is it true that \int_{-\infty}^{+\infty} e^{-x^2} dx = \sqrt{\pi}
?