(→Complex Arithmetic) |
(→Complex Arithmetic) |
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== Complex Arithmetic == | == Complex Arithmetic == | ||
'''Addition and Subtraction''' | '''Addition and Subtraction''' | ||
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<math> (a + bi) + (c + di) = (a + c) + (b + d)i </math> | <math> (a + bi) + (c + di) = (a + c) + (b + d)i </math> | ||
<math> (a + bi) - (c + di) = (a - c) + (b - d)i </math> | <math> (a + bi) - (c + di) = (a - c) + (b - d)i </math> | ||
Revision as of 11:10, 5 September 2008
Notation
$ a+bi $ where a and b are real numbers, and i is the imaginary unit, which has the property $ i^2 = -1 $. The real number a is called the real part of the complex number, and the real number b is the imaginary part.
Complex Arithmetic
Addition and Subtraction
$ (a + bi) + (c + di) = (a + c) + (b + d)i $
$ (a + bi) - (c + di) = (a - c) + (b - d)i $
