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Easton Milostan
@eastonmilostan 18, Aug 2023 12:00 AM
difference between * and .*
What is the difference between * and .* in MATLAB?
answers 2
Answer 1
Cesar Borne
@bornecesar 30, Aug 2023 05:22 PM
For example,
a = [ 1; 2]; % column vector
b = [ 3 4]; % row vector
a*b
ans =
3 4
6 8
while
a.*b.' % .' means tranpose
ans =
3
8
Answer 2
Cesar Borne
@bornecesar 30, Aug 2023 05:21 PM
* is a vector or matrix multiplication, in order to use this operator, the operands should obey matrix multiplication rules in terms of size.
.* is a element-wise multiplication. In order to use this operator, vector lengths or matrix sizes should be equal.