Calculated Industries 3420 Pocket Reference Guide - Manual (Page 9)

P OCKET R EFERENCE G UIDE — 8
Canadian / U.S. Interest Modes
Your calculator can easily be switched
between Canadian or U.S. Interest Mode
by pressing:
s 9
U.S. Mode allows:
• Entry/calculation of U.S. interest
rates.
• Enables selected U.S.-only functions
(e.g., ARM, APR, Rent vs. Buy, Tax
Deduction).
Preference Mode
s = Preference Mode (see
User’s Guide for details)
Allows you to select special settings. To
access, first press
s and then the =
key. Toggle through the various categories
by pressing the
= key. Toggle within each
category by pressing the + key. To set
the preference and exit, press the o
key. To reset the calculator back to its
default settings, turn off the calculator,
hold down
x and turn back on (“All
Reset” will flash for one second before
clearing to zero).
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