mat2str() on complex values with 0 inaginary part
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Hi,
Tried mat2str(complex(5,6)) witch seems ok:
ans =
'5+6i'
But other complex values with imaginary part 0 or 0+0i are printed as real values:
mat2str(complex(5,0))
ans =
'5'
mat2str(0+0i)
Seems incorect to me, is this a bug ?
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채택된 답변
Jan
2021년 1월 26일
편집: Jan
2021년 1월 26일
Mathematically 5 is the same as 5+0i, so the output is correct.
So omitting the imaginary part is a question of taste.
If you want to display it, do this expliticitly:
x = 1 + 2i;
sprintf('%g %gi', real(x), imag(x))
Alternatively you can copy the code of mat2str to e.g. mat2stri anywhere in your user-defined folders in the path and remove the line:
imagStr(imagVal == 0) = "";
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추가 답변 (2개)
Steven Lord
2021년 1월 26일
Not a bug. Many operations in MATLAB, if the result has an all zero imaginary part, will remove that imaginary part. complex is one of the few operations that does not by design.
x = complex(5, 0)
y = x(1)
z = x + 0
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