error in matlab function

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studentU
studentU 2015-5-12
评论： Walter Roberson 2015-5-13
hello,
I have a problem in matlab function block, where I use the trigonometric function, conversion function (ex:degtorad..) ... when I simulates a first part it works, but once I pass execter:
x = degtorad (var);
s = cos (x) * 2
... that it generated this error :
Expected Either a logical, char, int, fi, single, double gold. Found a MATLAB type. MATLAB kinds are returned from calls to the MATLAB interpreter and are not supported inside expressions. They May only be used on the right-hand side of assignments and have arguments to MATLAB calls.
can u help me?

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回答（3 个）

Walter Roberson
Walter Roberson 2015-5-12
Try
cx = cos(x);
s = cx * 2;
studentU
studentU 2015-5-12
编辑：Walter Roberson 2015-5-12
thank's for your reply,
it solves some but for:
f = cos (var) * sin (var) * cos (arg) + sin (var) * cos (arg);
I proceed in the same manner: vc = cos (var) .. then F1=vc*vs*ca;.. and f = F1 + F2;
but it generates mismatch Size!!
studentU
studentU 2015-5-12
yes I used it but it does not solve the problem :/
  1 个评论
Walter Roberson
Walter Roberson 2015-5-13
Your var and your arg are not the same size and your arg is not scalar.
You need to define what size of output you want for that case.
Code would help.
Note: do not go down to "Answer this question" to reply. Click in "Comment on this Answer" instead.

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