I am getting an error "Variable a must be of data type char. It is currently of type double. Check where the variable is assigned a value."
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Question:
Using matrix multiplication, multiply A1 by A1, set to a
Using matrix multiplication, multiply v1 by A1, set to c
Input: A1 = [-2:1; 1:-1:-2; -2:2:4]
v1 = linspace(-2,4,4)
a = A1 .* A1
c = v1 .* A1
output:
Variable a must be of data type char. It is currently of type double. Check where the variable is assigned a value.
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Risposte (1)
Pratik
il 13 Feb 2024
Hi Chloe,
In my understanding, you want to perform matrix multiplication between A1 & A1 , v1 & A1. The operator to perform matrix multiplication is '*' or function ‘mtimes’. Operator '.*' performs element wise multiplication.
I was not able to reproduce the error mentioned in the question with the code provided.
A1 = [-2:1; 1:-1:-2; -2:2:4]
v1 = linspace(-2,4,4)
a = A1 .* A1
c = v1 .* A1
For matrix multiplication of matrices A and B, the number of columns of A must equal the number of rows of B.
Please refer to the documentation of “mtimes” for more information on matrix multiplication:
Please refer to the documentation of “times” for more information on element wise multiplication:
I hope this helps!
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