How do you declare a symbolic function of time as a real variable
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Hello,
I have several symbolic functions of time which I would like to declare as real. How can I do this?
syms x1(t) x2(t) x3(t) real
does not work because later when I say X = [x1 ; x2 ; x3], the expressions for X involve conjugates.
Thank you,
Kevin
Answers (2)
Walter Roberson
on 10 Jun 2013
You could try adding an assumption that imag(x1(t)) == 0
1 Comment
Walter Roberson
on 19 Apr 2017
You can
assumeAlso(diff(x1(t),t),'real')
assumeAlso(diff(x2(t),t),'real')
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