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How to specifically select columns in a data matrix?
a=[12345; 23456; 34567; 45678] find i (a)(2.5) ii colom matrix v=a(;,4) iii matrx a iv a(:,2:3) v sa= a(2:3, 2:4)
How to specifically select columns in a data matrix?
a=[12345; 23456; 34567; 45678] find i (a)(2.5) ii colom matrix v=a(;,4) iii matrx a iv a(:,2:3) v sa= a(2:3, 2:4)
5 years 前 | 0
