HP 32SII, Руководство пользователя

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Entering and Evaluating Equations 6–1
File name 32sii-Manual-E-0424
Printed Date : 2003/4/24 Size : 17.7 x 25.2 cm
6
Entering and Evaluating
Equations
How You Can Use Equations
You can use equations on the HP 32SII in several way:
For specifying an equation to evaluate (this chapter).
For specifying an equation to solve for unknown values (chapter 7).
For specifying a function to integrate (chapter 8).
Example: Calculating with an Equation.
Suppose you frequently need to determine the volume of a straight section of
pipe. The equation is
V = .25
π
d
2
l
There d is the inside diameter of the pipe, and l is its length.
You could key in the calculation over and over, for example, .25 š
{ M y
2.5
z : y
16
y
calculates the volume of 16 inches of
2
1
/
2
–inch diameter pipe (78.5398 cubic inches). However, by storing the
equation , you get the HP 32SII to "remember" the relationship between
diameter, length, and volume—so you can use it many times.
Put the calculator in Equation mode and type in the equation using the
following keystrokes:
Keys: Display: Description:
{ G
! !
or the current equation
Selects Equation mode, or the
current shown by the
EQN
annunciator.