†or acancel that display and shows the X–register.

When viewing an equation, a displays the cursor at the end the equation to allow for editing.

During equation entry, abackspaces over the displayed equation, one function at a time.

For example, if you intended to enter 1 and 3 but mistakenly entered 1 and 2, this what you should do to correct your error:

T

 

 

 

 

 

 

 

 

 

Z

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Y

 

 

 

 

 

 

 

 

 

 

 

1

 

1

 

1

 

1

X

 

 

 

 

 

 

 

 

 

1

š

1

2

†

0

3

 

 

 

 

 

 

 

 

 

 

1

2

 

3

 

4

 

5

 

1.Lifts the stack

2.Lift the stack and replicates the X–register.

3.Overwrites the X–register.

4.Clears x by overwriting it with zero.

5.Overwrites x (replaces the zero.)

The LAST X Register

The LAST X register is a companion to the stack: it holds the number that was in the X–register before the last numeric function was executed. (A numeric function is an operation that produces a result from another number or numbers, such as <.) Pressing z Ž returns this value into the X–register.

This ability to retrieve the "last x" has two main uses:

1.Correcting errors.

2.Reusing a number in a calculation.

2–8 The Automatic Memory Stack

File name 32sii-Manual-E-0424

 

Printed Date : 2003/4/24

Size : 17.7 x 25.2 cm