LBS290F                                                     Fall 1991

                 ASSIGNMENT 11 - FUNCTIONS

Due Date: Before Lecture 10/28/91

This assignment is a modification to assignment 10.  Instead of
computing the determinant in the main program, write a function
to compute the determinant.

Name the function det and pass it three double precision parameters.
The function header for det should be as follows:

double det (a, b, c)

 double a;
 double b;
 double c;

{

  /* Insert your code here */

}

Your program should prompt for three sets of numbers and check for
negative determinants like the previous programs.

Example execution:

  $ a.out
  Enter the value for a: 1.0
  Enter the value for b: -3.0
  Enter the value for c: 2.0

  First root: 2.0
  Second root: 1.0

  Enter the value for a: 1.0
  Enter the value for b: 2.0
  Enter the value for c: 8.0

  Negative determinant - no roots found

  Enter the value for a: 1.0
  Enter the value for b: 2.0
  Enter the value for c: 1.0

  First root: -1.0
  Second root: -1.0

  $

Run the program for the values:

a=1 b=-3 c=2
a=1 b=2 c=8
a=1 b=2 c=1

Hand in only the program source code using mailx.