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LaTeX examples (via MathJax) in write.as/writefreely blogs
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An example
The Quadratic Formula
f ( a ) = 1 2 π i ∮ f ( z ) z − a d z
Cauchy's Integral Formulaf ( a ) = 1 2 π i ∮ f ( z ) z − a d z
Angle Sum Formula for Cosinescos
Gauss' Divergence Theorem
Curl of a Vector Field
Standard Deviation
Definition of Christoffel Symbols