hp40g+.book Page 2 Friday, December 9, 2005 1:03 AM
Define and solve the equations
example in the previous step). To solve a three-
equation set, press . Now the input form displays three equations.
If the
to solve a
In this example, we are going to solve the following equation set:
6x + 9y + 6z = 5
7x + 10y + 8z = 10 6x + 4y = 6
Hence we need the
3.You define the equations you want to solve by entering the
first equation. Enter that
.
4.The cursor moves to the next
efficient, press or , and continue doing likewise until you have defined all the equations.
Note: you can enter the name of a variable for any
entering the name. The menu key appears. Press that key to lock alphabetic entry mode. Press it again to cancel the lock.
Once you have entered enough values for the solver to be able to generate solutions, those solutions appear on the display. In the example at the right,
the solver was able to find solutions for x, y, and z as soon as the first
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