HP 50g User Manual Page 535

Graphing calculator.

First, create the expression defining the derivative and store it into variable EQ.
The figure to the left shows the ALG mode command, while the right-hand side
figure shows the RPN stack before pressing K.
Then, enter the NUMERICAL SOLVER environment and select the differential
equation solver: ‚Ï˜ @@@OK@@@ . Enter the following parameters:
To solve, press: @SOLVE (wait) @EDIT@.
Solution presented as a table of values
Suppose we wanted to produce a table of values of v, for t = 0.00, 0.25, ...,
2.00, we will proceed as follows:
First, prepare a table to write down your results. Write down in your table the
step-by-step results:
Next, within the SOLVE environment, change the final value of the independent
variable to 0.25, use :
—.25 @@OK@@ ™™ @SOLVE (wait) @EDIT
(Solves for v at t = 0.25, v = 3.285 .... )
@@OK@@ INIT+ — . 5 @@OK@@ ™™@SOLVE (wait) @EDIT
(Changes initial value of t to 0.25, and final value of t to 0.5, solve for v(0.5) =
2.640...)
The result is 0.2499
t
v
0.00
0.00
0.25
...
...
2.00
0.25. Press @@@OK@@@.
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