HP (Hewlett-Packard) 50g ユーザーズマニュアル

Page 27-4

When you select a subject and title in the Equation Library, you specify a set of 
one or more equations. You can get the following information about the 
equation set from the Equation Library catalogs:

The equations themselves and the number of equations.

The variables used and their units. (You can also change the units.)

A picture of the physical system (for most equation sets).

All equations have a display form and some applications also have a 
calculation form. The display form gives the equation in its basic form, the form 
you would see in books. The calculation form includes computational 
refinements. If an equation has a computational form, an * appears in the 
upper left corner of the equation display.

#EQN#  #NXEQ#   Shows the display form of 

current or next equation in 
EquationWriter format.

`

Shows the display form of 
current or next equation as an 
algebraic object. ` or ˜
shows the next equation, —
shows the previous.

'B=(μ0*μr*I)/
(2*à*r)'

Shows calculation form by 
putting a list containing the 
current set of equations on the 
stack.

{'B=IFTE(r<rw,CO
NST(μ0)*μr*I*r/
(2*à*rw^2),CONST
(μ0)*μr*I/
(2*à*r))' }

r I

B

r

μ μ

π

⋅

⋅

=

⋅ ⋅

0

2