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Why does y come out as one number?

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Jinkyu Kwon
Jinkyu Kwon 2018-3-29
关闭： MATLAB Answer Bot 2021-8-20
I put x as a variable but y comes out as one number whats wrong?

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回答（2 个）

Roger Stafford
Roger Stafford 2018-3-29
编辑：Roger Stafford 2018-3-29
The scalar result is caused by the use of matrix division rather than element-by-element division. Replace '/' by './'. Similarly replace '^2' by '.^2' .
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Jinkyu Kwon
Jinkyu Kwon 2018-3-29
thank you but can you help me with this problem too?
Roger Stafford
Roger Stafford 2018-3-29
It looks as if the dot in front of the asterisk in ".^2.*1.79" is being mistaken for a decimal point after the 2. Try putting parentheses around the 2: ".^(2).*1.79"
madhan ravi
madhan ravi 2018-7-7
You put x as numerical Data.
If you want to get result in terms of x then x has to be defined as a symbolic variable. i.e.,
syms x
This would give you the desired result.

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