Why am I getting a 3x3 array when only using 3x1's in the equation?

The data I'm using is;

H = [2.8;6.4;11.5]

v = [0.155;0.233;0.310]

k = (H.* (2*9.81)) / (v.^2)

and the output is in the format of [0,0,k]

Why is this happening and is there a way to correct it because I need to plot k and its making it hard

[Stephen23]

"Why is this happening..."

Because you are using mrdivide / , which (as its documentation clearly states) solves systems of linear equations:

https://www.mathworks.com/help/matlab/ref/mrdivide.html

"...and is there a way to correct it..."

Use the correct operator, you want to use element-wise division rdivide ./

https://www.mathworks.com/help/matlab/ref/rdivide.html

Tip: if you are not doing linear algebra then most likely you need to use array operations, not matrix operations:

https://www.mathworks.com/help/matlab/matlab_prog/array-vs-matrix-operations.html

Answer 1

[madhan ravi]

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