# Solving Equations With One Unknown Through Num.slv - HP 48gII User Manual

Graphing calculator.

J „ä
@@@n@@
@@PV@@
@@PMT@@
@@PYR@@
@@FV@@
`
I@PURGE
Before the command PURGE is entered, the RPN stack will look like this:

## Solving equations with one unknown through NUM.SLV

The calculator's NUM.SLV menu provides item
different types of equations in a single variable, including non-linear algebraic
and transcendental equations.
sin(πx/3) = 0.
Simply enter the expression as an algebraic object and store it into variable
EQ. The required keystrokes in ALG mode are the following:
³„¸~„x™-S„ì
*~„x/3™‚Å 0™
Function STEQ
Function STEQ, available through the command catalog, ‚N, will store
its argument into variable EQ, e.g., in ALG mode:
In RPN mode, enter the equation between apostrophes and activate command
STEQ. Thus, function STEQ can be used as a shortcut to store an expression
into variable EQ.
Prepare a list of variables to be purged
Enter name of variable N
Enter name of variable I%YR
Enter name of variable PV
Enter name of variable PMT
Enter name of variable PYR
Enter name of variable FV
Enter list of variables in stack
Purge variables in list
For example, let's solve the equation: e
K~e~q`
1. Solve equation..
solve
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