I try reduce my matrix a single value for my input or a call a value

Hello. I have matrix and I try the use the value in the matix for my input. I wanna the take this value as a integer. Also all values are integer in my matix. How can I take a value for my input in matrix. Thanks a lot.

[David Hill]

Just index into your matrix. You can use linear indexing or row,column

m=randi(100,10)

m = 10×10

92 29 95 94 6 93 46 52 9 21 74 5 96 84 20 43 75 21 73 86 32 60 4 24 35 3 21 95 42 77 17 54 70 84 80 53 65 97 50 39 25 82 44 15 58 70 28 93 84 29 94 2 73 20 19 51 15 44 9 44 65 44 5 76 57 78 49 78 74 22 13 60 100 62 86 17 10 55 36 86 28 58 45 98 8 50 76 62 63 31 85 10 72 9 22 16 20 85 52 26

m(15)

ans = 82

m(5,2)

ans = 82

Answer 1

[Vilém Frynta]

You can call value in vector by specifying it's position.

mtx = [1, 2; 3, 4; 5, 6]

mtx = 3×2

1 2 3 4 5 6

Now you have to write matrix name (in my example it's "mtx") and write position. First row number, then column number.

mtx(1,2)        % number in 1st row, 2nd column

ans = 2

mtx(3,1)        % number in 3rd row, 1st column

ans = 5

Is this what you asked? Feel free to ask more. I'm not 100% sure I understood your question.