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The Wiki accepts the HTML conventions for simple superscripts (exponents for you math folks) and subscripts (also known as indices). Just edit this page to see how they are used.
A quadratic equation looks like this:
- y = a x2 + b x + c.
A power series looks like this:
- a0 + a1 x + a2 x2 + ... + ak-1 xk-1 + akxk + ...