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Fast operations between matrix

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Ran E
Ran E 2020-11-7
评论： Ran E 2020-11-7
hello,
I have two matrix - the first one is 52X3 matrix and the second is 3X1 matrix
I want to know what is the fastest way to make a subtraction between the rows in seperately of the first matrix and the second matrix
for example: matrix numbe 1 - [1,2,3; 4,5,6; 6,7,8]
matrix number 2 - [0,1,2]
i want to substract the first row in matrix 1 with matrix 2, and then to substract the second row in matrix 1 with matrix 2 and so on.

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回答（1 个）

Bruno Luong
Bruno Luong 2020-11-7
A = rand(52,3)
B = rand(3,1)
S = A-B.'

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