how to store vector-valued function value into a single vector variable

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HB
HB 2012-1-8
I've defined a vector-valued function "myvec" in file "myvec.m" like this:
function [a b c]=myvec(x)
a=x+1;
b=x+2;
c=x+3;
end
What syntax do I enter on the command line to get the output vector value of this function stored into a single vector variable "u"?
Note: I tried e.g. to enter on the command line
u=myvec(7)
But this only stores a single scalar value into "u". It results in:
u=
8
i.e., only the 1st element of the actual vector value of myvec(7) gets stored into "u".
What I want instead is to get all 3 elements of myvec(x) stored into "u", so that, e.g.,
u = [8 9 10] for myvec(7).
Can this be done with a single assignment statement, i.e. using something like
u=.... ?
Or
u(:)=.... ?
Or
u(1:3) = .... ?

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采纳的回答

Robert Cumming
Robert Cumming 2012-1-8
[u(1) u(2) u(3)] = myvec(7);
or a better way is to change your function so that it outputs a vector rather than 3 scalars.
  2 个评论
HB
HB 2012-1-8
Thanks! So, I guess re-defining the function as
function a=myvec(x)
a(1)=x+1;
a(2)=x+2;
a(3)=x+3;
end
will work. If I now execute
u = myvec(7)
then the whole vector gets stored into u:
u=
8 9 10

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