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numapprox[laurent] - Laurent series expansion
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Calling Sequence
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laurent(f, x=a, n)
laurent(f, x, n)
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Parameters
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f
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expression representing the function to be expanded
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x
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the variable of expansion
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a
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the point about which to expand
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n
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(optional) non-negative integer stating the order of expansion
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Description
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The function laurent computes the Laurent series expansion of f, with respect to the variable x, about the point a, up to order n.
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The laurent function is a restriction of the more general series function. See series for a complete explanation of the parameters.
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If the result of the series function applied to the specified arguments is a Laurent series with finite principal part (i.e. only a finite number of non-negative powers appear in the series) then this result is returned; otherwise, an error-return occurs.
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The command with(numapprox,laurent) allows the use of the abbreviated form of this command.
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Examples
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