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how to change this value in number??????

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Prakash Choudhary
Prakash Choudhary 2019-6-26
评论： KALYAN ACHARJYA 2019-6-28
X=1.0202e+05 - 6.1123e+11i

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KALYAN ACHARJYA
KALYAN ACHARJYA 2019-6-26
编辑：KALYAN ACHARJYA 2019-6-26
>> format long g
>> X=1.0202e+05 - 6.1123e+11i
X =
102020-611230000000i
Here i denotes complex, which is a number
The display number depends on how you set the format (you can change the default setting)
Example:
>> format long
or
>> format short
For detail please see the Matlab documentation.
To avoid i (Complex Number Notation), you have to deal with individually
  • real(X)- Gives Real Part
  • imag(X) Gives Imaginary Part
Example:
>> real(X)
ans =
102020
>> imag(X)
ans =
-611230000000
Hope it helps!
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Prakash Choudhary
Prakash Choudhary 2019-6-27
so we only use the real number here for multiplication??
KALYAN ACHARJYA
KALYAN ACHARJYA 2019-6-28
No, please read Multiplying a complex number by a real number, it multiply both real and imag part.
X=1.0202e+05 - 6.1123e+11i >> Complex number
Y=X*2, here 2 is real number

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