Math & Science ⇒ \begin{equation*} shows error

[pradeep]

I have no issue when running

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\begin{equation}

but when i run

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\begin{equation*}

comes out with error. I try to use

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\nonumber

instead but the output have no changes still the equation comes with the numbering.

Could not find where the source of the problem will be? Appreciate the help.

[Stefan Kottwitz]

Hi,

the equation* environment requires amsmath. Add to your preamble:

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\usepackage{amsmath}

That package is very useful for writing mathematics, it's recommendable to load it.

You can also write

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\[
  expression
\]

for unnumbered equations. In amsmath, this uses equation*.

Stefan