integration
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回答（2 个）
Paulo Silva
2011-8-18
yes and no, to do symbolic integration use int
syms x
int(x*log(1 + x), 0, 1)
Walter Roberson
2011-8-18
1 个投票
syms uses command/function duality, as is often the case for save() and load().
syms is part of the Symbolic Toolbox and is not defined if you do not have that toolbox.
For numeric integration, see http://www.mathworks.com/help/techdoc/ref/f16-5872.html#f16-6472 and http://www.mathworks.com/help/techdoc/ref/polyint.html and http://www.mathworks.com/help/techdoc/ref/f16-5872.html#f16-6443 and http://www.mathworks.com/help/techdoc/ref/trapz.html (and http://www.mathworks.com/help/techdoc/ref/cumtrapz.html)
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2011-8-18
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