2D plot of x*sin(1/x)

x = [-1/pi:0.01:1/pi];
y = x*(sin(1/x));
plot(x,y)

[Stephen23]

https://www.mathworks.com/matlabcentral/answers/35676-why-not-use-square-brackets

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

Answer 1

[KSSV]

x = [-1/pi:0.01:1/pi];
y = x.*(sin(1./x));   %<------ element by element operation 
plot(x,y)

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[feeroz babu]

Thank you

Answer 2

[Walter Roberson]

y = x.*(sin(1./x));

In MATLAB the * operator is algebraic matrix multiplication (inner product) and the / operator is matrix division (which is similar to matrix multiplication by pinv() of the array)