Code for an equation
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I want to plot y = (3.5^(-.5x))*cos(6x) for x= -2 to x= 4 with interval of 0.01 without using for loop.
Following is the code I am writing:
clc
x = [-2:.01:4];
y = (3.5.^(-.5*x))*(cos(6*x));
plot(x,y);
But I recieve this error
Error using *
Inner matrix dimensions must agree.
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採用された回答
Aviel Moos
2019 年 7 月 23 日
編集済み: Aviel Moos
2019 年 7 月 23 日
You need to use elementwise multimplication.
let look at this:
A = (3.5.^(-.5*x)); % Here you will get a vector with 601 elements
B = (cos(6*x)); % Here you will get also a vector with 601 elements
You cannot just multiply, You need to multiplay each element in place K of A with element in place K of B.
So just replace:
y = (3.5.^(-.5*x))*(cos(6*x));
with this:
y = (3.5.^(-.5*x)).*(cos(6*x));
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