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Challenges 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 ...

7 answers  ·  posted 2y ago by heav‭  ·  last activity 1y ago by __blackjack__‭

Question code-golf math
#7: Post edited by user avatar heav‭ · 2021-06-29T22:14:24Z (over 2 years ago)
  • Multiply complex numbers. 2 space-seperated ones will be input,
  • as follows:
  • `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.
  • (update: you can replace i with j or some other symbol if needed)
  • 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`
  • 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`
#6: Post edited by user avatar heav‭ · 2021-06-29T22:13:49Z (over 2 years ago)
  • Multiply complex numbers. 2 space-seperated ones will be input,
  • as follows:
  • `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.
  • (update: you can replace i with j if needed)
  • 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`
  • Multiply complex numbers. 2 space-seperated ones will be input,
  • as follows:
  • `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.
  • (update: you can replace i with j or some other symbol if needed)
  • 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`
#5: Post edited by user avatar heav‭ · 2021-06-29T22:13:34Z (over 2 years ago)
  • Multiply complex numbers. 2 space-seperated ones will be input,
  • as follows:
  • `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`
  • Multiply complex numbers. 2 space-seperated ones will be input,
  • as follows:
  • `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.
  • (update: you can replace i with j if needed)
  • 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`
#4: Post edited by user avatar heav‭ · 2021-06-29T22:13:04Z (over 2 years ago)
  • Multiply complex numbers. 2 space-seperated ones will be input,
  • as follows:
  • `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` -> `8-31i`
  • - `-4+9i 2-2i` -> `10+26i`
  • - `-4+9i 2+2i` -> `-26+10i`
  • - `-3+0i 10+0i` -> `-30+0i`
  • - `0+1i 0+1i` -> `-1+0i`
  • Multiply complex numbers. 2 space-seperated ones will be input,
  • as follows:
  • `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`
#3: Post edited by user avatar caird coinheringaahing‭ · 2021-06-29T21:28:40Z (over 2 years ago)
Multiply complex numbers.
  • Multiply complex numbers. 2 space-seperated ones will be input,
  • as follows:
  • `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` -> `8-31i`
  • - `-4+9i 2-2i` -> `10+26i`
  • - `-4+9i 2+2i` -> `-26+10i`
  • - `-3+0i 10+0i` -> `-30+0i`
  • - `0+1i 0+1i` -> `-1+0i`
  • Multiply complex numbers. 2 space-seperated ones will be input,
  • as follows:
  • `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` -> `8-31i`
  • - `-4+9i 2-2i` -> `10+26i`
  • - `-4+9i 2+2i` -> `-26+10i`
  • - `-3+0i 10+0i` -> `-30+0i`
  • - `0+1i 0+1i` -> `-1+0i`
#2: Post edited by user avatar heav‭ · 2021-06-29T21:26:47Z (over 2 years ago)
  • Multiply complex numbers. 2 space-seperated ones will be input,
  • as follows:
  • `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.
  • Multiply complex numbers. 2 space-seperated ones will be input,
  • as follows:
  • `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` -> `8-31i`
  • - `-4+9i 2-2i` -> `10+26i`
  • - `-4+9i 2+2i` -> `-26+10i`
  • - `-3+0i 10+0i` -> `-30+0i`
  • - `0+1i 0+1i` -> `-1+0i`
#1: Initial revision by user avatar heav‭ · 2021-06-29T21:19:36Z (over 2 years ago)
Multiply complex numbers.
Multiply complex numbers. 2 space-seperated ones will be input,
as follows:

`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.