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

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Furkan Ceylan
Furkan Ceylan 2022-11-29
回答： Vilém Frynta 2022-11-29
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.
  1 个评论
David Hill
David Hill 2022-11-29
Ran in:
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

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回答（1 个）

Vilém Frynta
Vilém Frynta 2022-11-29
Ran in:
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.

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