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Site Menu: Introduction Argand Diagrams Complex Algebra De Moivre's Theorem Complex Conjugates Links: Learn Html At www.w3schools.com/html More On Complex Numbers At www.ping.be And At http://scholar.hw.ac.uk Interesting Problems On Complex Numbers At www.nrich.maths.org |
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-Introduction-
In algebra there is a problem in solving equation such as i2 = -1. This problem can be overcome by introducing complex numbers. These take the form x + i.y, where i = Ö(-1) and x and y are real numbers. The squareroot of -a2 can be written as a.i and such a number is called imaginary. A complex number can be split into 2 parts, imaginary and real. x is the real part and y is the imaginary part.
Another way of thinking about complex numbers is to imagine a real number line. An imaginary number must not lie on this line so we could say that i is located at this point
