A complex number is a number of the form *a*+*bi* where *a* and *b* are
real numbers and is assumed to be -1. Two complex numbers
*a*+*bi* and *c*+*di* are equal if and only if both *a*=*c* and *b*=*d*. To
add two complex numbers, (*a*+*bi*)+(*c*+*di*)=(*a*+*c*)+(*b*+*d*)*i*. To multiply
two complex numbers, .
To divide two complex numbers, use the conjugate of the denominator,

Wed Apr 21 08:17:28 EDT 1999