Now calculate the change in pressure of the carbon dioxide if its temperature drops by 10 °C from the previous example.

Keys: Display:Description:

HL

) 

Stores previous pressure.

{VH

) 

Enters the limits of integration

 

 

(lower limit first).

{œP #@)

f@)

f@) 

f!@ )

š10 „ !@ )

f#

/) 

KL „ .)

Selects variable P; prompts for V.

Retains 2 in V; prompts for N.

Retains .005 in N; prompts for R.

Retains .0821 in R; prompts for T.

Calculates new T.

Stores 287.1 in T; solves for new P.

Calculates pressure change of the gas when temperature drops from

297.1K to 287.1 K (negative result indicates drop in pressure).

Using SOLVE in Program

You can use the SOLVE operation as part of a program.

If appropriate, include or prompt for initial guesses (into the unknown variable and into the X–register) before executing the SOLVE variable instruction. The two instructions for solving an equation for an unknown variable appear in programs as:

/ label

# variable

The programmed SOLVE instruction does not produce a labeled display (variable = value) since this might not be the significant output for your program (that is, you might wart to do further calculations with this number

Solving and Integrating Programs 14–5

File name 32sii-Manual-E-0424

 

Printed Date : 2003/4/24

Size : 17.7 x 25.2 cm