MATLAB: Error unexpected matlab expression

error: unexpected matlab expression.

Hi, can please help me, I key the equation in the code but it comes out error unexpected Matlab expression I don't what to do. can someone help me? thank you

Best Answer

In MATLAB, the multiplication is the asterisk ‘*’, not a dot ‘.’.

If you want to do element-wise operations, use the dot operator with the multiplication operator ‘.*’, and with other operators to do element-wise division and exponentiation. The other expression, ‘x.y’ will be interpreted as referring to a structure, and will throw a different error if that structure does not appear in your workspace.

See the documentation on Getting Started (link) to understand the essentials of MATLAB programming, and Array vs. Matrix Operations (link) to understand the ‘dot operator’.

Related Solutions

MATLAB: Error: Invalid expression. Check for missing multiplication operator, missing or unbalanced delimiters, or other syntax error. To construct matrices, use brackets instead of parentheses.

Variable names in MATLAB are not allowed to contain the - character. Nor are they allowed to start with a digit. See the documentation for the isvarname function for a list of other restrictions.

MATLAB: How can i 3d plot z=x*y

Try this:

z = x .* y;

You need to do ‘element-wise’ multiplication, and adding the ‘dot operator’, changing (*) to (.*). will do this.

See the documentation on Array vs. Matrix Operations (link) for details.

Best Answer

Related Solutions

MATLAB: Error: Invalid expression. Check for missing multiplication operator, missing or unbalanced delimiters, or other syntax error. To construct matrices, use brackets instead of parentheses.

MATLAB: How can i 3d plot z=x*y

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