derivative in syms
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If I am using syms, and i have the following
a = b * u
then da/dt = b * du/dt.
How do I get matlab to do this rather than just assume u is not a function of t and assign a value of 1?
采纳的回答
Walter Roberson
2011-10-12
You tell MATLAB that u is a function of t.
a = subs(a,'u','u(t)');
diff(a,'t')
更多回答（1 个）
William
2011-10-12
0 个投票
It looks like you're tying a differential equation
try this link
2 个评论
Franco
2011-10-12
Bjorn Gustavsson
2011-10-12
Look at 'dsolve' then, that should be what you want to use for solving DE analytically.
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