Math Notes

David Wallace Croft
2005-02-02

Identities

1. Taylor Series
   $x\left(t+\Delta t\right)=\underset{k=0}{\overset{\infty }{\Sigma }}\frac{{\Delta t}^k}{k!}{x}^{\left(k\right)}\left(t\right)$
2. Exponential Function
   $e^{\Delta t}=\underset{k=0}{\overset{\infty }{\Sigma }}\frac{{\Delta t}^k}{k!}$
3. Matrix Multiplication
   $A*B=[\underset{k=1}{\overset{n}{\Sigma }}{a}_{ik}*b_{kj}]$

Links

• Character Entity References in HTML 4
• Exponentional Function
• MathML Basics
• MathML Fundamentals