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The expression to the left of the equals sign is not a valid target for an assignment.

Asked by Muhammad Naveed Iqbal on 10 Jun 2015
Latest activity Commented on by Chris Rogers on 12 Apr 2017
I wrote the following code for definite integral but it give the statement
The expression to the left of the equals sign is not a valid target for an assignment
please tell me the problem
code:
syms x
S=int(sin(cos(x)), x = 0..1)

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2 Answers

Answer by David Sanchez
on 10 Jun 2015

You are using the notation used by
numeric::int
instead of that to
int
Take a look at their differences in the documentation: they might seems the same, but they are not.
doc numeric::int
doc int

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Answer by Titus Edelhofer on 10 Jun 2015

Hi,
that's the maple notation. Use the following:
syms x
S=int(sin(cos(x)), x, 0, 1)
Then it should work, although there is no (symbolic) solution to this ...
Titus

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This gives me the error "Cannot integrate with respect to '0'. The integration variable must be a symbolic variable."

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