Instead of i, Python uses j because in electrical engineering, i traditionally means current.
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if you want to use single j, you should write down 1j.
x.real x.imag(extract real and imaginary part of complex number)
We see that in Python you use plus to add real numbers or complex numbers. Use of the same name for different procedures is called overloading.
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You can plug in any collection of “numbers” with arithmetic operators +, -, *, /
satisfying the algebraic properties— and much of linear algebra will still “work”.
*Such a collection of ”numbers” with +, -, , / is called a field.
Different fields are like different classes obeying the same interface.
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