This is suppose to generate 66 combinations, but i'm getting less
I tried to generate a sequence with a specific interval, but the output skips some intervals.
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mat = [];
interval = -0.10;
max = 1.00;
i = 0;
for a=1.00:interval:0.00
for b=1.00:interval:0.00
for c=1.00:interval:0.00
if a+b+c == max
mat(i+1,:) = [a,b,c];
i=i+1;
end
end
end
end
mat
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DGM
2023 年 1 月 22 日
編集済み: DGM
2023 年 1 月 22 日
I missed the comparison.
You're dealing with floating-point numbers. You can expect exact equality tests to fail due to rounding errors. This comment contains a number of links to related threads on the topic. Other people have explained it better than I can.
You can test for equality within some tolerance
mat = [];
interval = -0.10;
maxval = 1.00;
i = 0;
for a=1.00:interval:0.00
for b=1.00:interval:0.00
for c=1.00:interval:0.00
thissum = a+b+c;
if abs(thissum-maxval) < 1E-14
mat(i+1,:) = [a,b,c];
i=i+1;
end
end
end
end
mat
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