Many basic operators in MATLAB are treated as matrix operations, includingmultiplication ,division ,andpower operators.
When you wish to perform the same operation element-wise, then you can use the element-wise syntax. For example matrix multiplication isA*B, whereasmultiplication of corresponding array elements isA.*B .
In your example, this means you can simply use theelement-wise power function:
x.^4
which operates on the whole vector at once. Handy! You might like to read this too:
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