The complex number calculator that can input expressions is still in the testing stage and does not have a verification function.
Addition: The real part is added to the real part, and the imaginary part is added to the imaginary part.
(a+bi)+(c+di)=(a+c)+(b+d)i
Subtraction: subtract the real part from the real part to the real part, and subtract the imaginary part from the imaginary part to the imaginary i.
(a+bi)-(c+di)=(a-c)+(b-d)i
Multiplication: Do it according to the multiplication operation of polynomials
(a+bi)*(c+di)=ac+adi+bci+bdi^2(i^2=-1)
=(ac-bd)+(ad+bc)i
Division: Write the division as a fraction, and then convert the denominator into a real number (that is, multiply its complex conjugate)
(a+bi)/(c+di)=(a+bi)*(c-di)/[(c+di)(c-di)]
=[ac+bd-(ad-bc)i]/(c^2+d^2)
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