Multiply complex numbers. 2 space-seperated ones will be input, as follows: (update: you can replace i with j or some other symbol if needed)

a+bi -a+bi a-bi -a-bi

where a and b are integers written in base 10.

You are expected to output in the same format.

For those unfamiliar: $i$ is the imaginary constant, the value of $\sqrt{-1}$, and a complex number is the sum of a real number and an imaginary number.

Shortest code following the rules wins.

EDIT: test cases:

• 3+4i 4-5i -> 32+1i
• -4+9i 2-2i -> 10+26i
• -4+9i 2+2i -> -26+10i
• -3+0i 10+0i -> -30+0i
• 0+1i 0+1i -> -1+0i

posted over 3 years ago

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3y ago

heav‭

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