<b_jonas> slashlearn greater//A greater than sign instructs the shell to send the output of the command to a file. Not very mnemonic, but a grater is the closest thing to a file that ASCII has.

|a+b@| = { √(a²-b²) if a²-b² ≥ 0 ; i√(a²-b²) if a²-b² < 0 }