Complex Number Multiplication Calculation

 Complex Numbers Multiply Calculation

An online real & imaginary numbers multiplication calculation.

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Multiply Complex Numbers


  • Formula
  • = (A+Bi) and (C+Di)
  • = ( (AxC)-(BxD) )
  •          +
  • ( (BxC) + (DxA) ) i
  • Example:
  • (1 + 2)i and (3 + 4)i
  • = (1 x 3) - (2 x 4) , to get -5
  •         +
  • (2 x3 ) + ( 4 x 1) , to get 10i.
  • This makes our answer
  • = -5 + 10i.

Example Problems:

Click the below problems to get the answer.

  • Example - 1
  • solve (1+2) and (4+5)i
  • solve (-1+2) and (-4+5)i
  • solve (3-2) and (-5-4)i
  • solve (1-2) and (-1+5)i
  • solve (1+8) and (4+8)i
  • solve (5+2) and (4+5)i
  • solve (1+6) and (4+5)i
  • Example - 2
  • solve (1+8) and (8+5)i
  • solve (9+2) and (9+5)i
  • solve (1+9) and (4+5)i
  • solve (1+8) and (4+5)i
  • solve (1+2) and (9+5)i
  • solve (1+5) and (9+5)i