i have run the same matrix multiplication in both matlab and julia but matlab in much faster that julia, i have used both A_mul_B! and *() functions my codes are : in matlab : tic a = rand(1000,1000) a*a toc the output is : Elapsed time is 0.193979 seconds

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in Julia : a = rand(1000,1000) y=similar(a) @time a*a @time A_mul_B!(y,a,a) the output is: 1.575159 seconds 1.497884 seconds Majid