Comments on Multiply complex numbers.
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Multiply complex numbers.
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
[Python 3], 98 bytes …
3y ago
[JavaScript (Node.js)], 99 96 …
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Ruby, 25 bytes ```ruby ->e …
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Python 3, 63 bytes ```python …
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Sidef, 25 bytes ``` {eval …
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J, 2 bytes ``` / ``` T …
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[Ruby], 35 bytes -> …
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Python 3, 98 bytes
print(str(eval("("+input().replace(" ",")*(").replace("i","j")+")")).strip("()").replace("j","i"))
Since the input format is restrictive, I may as well just spam replace and abuse eval.
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