convert real numbers to img form

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armin m
armin m 2021-11-26
编辑： John D'Errico 2021-11-26
hi.i have real number which i want to convert t img form. how can i do this?
e.g: 8 to 8i
tnx

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回答（1 个）

Chunru
Chunru 2021-11-26
Ran in:
a = 8
a = 8
b = a*1i % method 1
b = 0.0000 + 8.0000i
c = complex(0, a) % method 2
c = 0.0000 + 8.0000i
  1 个评论
John D'Errico
John D'Errico 2021-11-26
编辑：John D'Errico 2021-11-26
+1 of course, as this seems to cover the bases completely.
I would only add that MATLAB does not have a purely imaginary form, only a complex form. Since the OP seems to be hoping to see a number of the form 8i, they may become confused when seeing a zero real part displayed. If the real part is zero, then the result is purely imaginary.

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