Variables (a, b, c, d, e, f, x, y) – HP 300s Scientific Calculator User Manual
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• The “M” indicator appears in the upper left of the display
when there is any value other than zero stored in the
independent memory.
• Independent memory contents are maintained even if you
press the
key, change the calculation mode, or turn off
the calculator.
Calculation Examples Using Independent Memory
• If the “M” indicator is on the display, perform the procedure
under “Clearing Independent Memory” before performing
this example.
Example: 23+9=32
53- 6=47
-)45
✕2=90
(M-)
99
÷
3=33
(Total) 22
(M)
Clearing Independent Memory
Press
(STO)
. This clears independent
memory and causes the “M” indicator to disappear from the
display.
Variables (A, B, C, D, E, F, X, Y)
Variable Overview
• You can assign a specific value or a calculation result to a
variable.
Example: To assign the result of 3+5 to variable A.
(STO)
(A)
• Use the following procedure when you want to check the
contents of variable A.
Example: To recall the contents of variable A.
(A)
• The following shows how you can include variables inside
of an expression.
Example: To multiply the contents of variable A by the
contents of variable B.
(A)
(B)
• Variable contents are maintained even if you press the
key, change the calculation mode, or turn off the
calculator.