HP 49g+ User Manual page 216

We can type in the equation for E as shown above and use auxiliary
variables for A and V, so that the resulting input form will have fields for the
fundamental variables y, Q, g, m, and b, as follows:
•
First, create a sub-directory called SPEN (SPecific ENergy) and work
within that sub-directory.
•
Next, define the following variables:
• Launch the numerical solver for solving equations: ‚Ï@@OK@@.
Notice that the input form contains entries for the variables y, Q, b, m,
and g:
•
Try the following input data: E = 10 ft, Q = 10 cfs (cubic feet per
second), b = 2.5 ft, m = 1.0, g = 32.2 ft/s
•
Solve for y.
m
y
1
b
2
:
Page 6-19