Calculated Industries 4090 User Manual
Page 8
U
SER
’
S
G
UIDE
— 7
Ç √
Cube Root Function — Used to find the Cube Root
of a non-dimensional or area value (e.g.,
1 0 0
0 З √ = 10).
З /
x10
y
— Allows entry of an exponent. For example,
8 Ç / 1 4 is 8 times 10 to the 14th power
(8x10
14
).
З ч
1/x — Finds the reciprocal of a number (e.g.,
8
З ч = 0.125).
З –
Change (+ / –) Sign — Changes the sign of the dis-
played value to negative or positive.
π
Pi — Constant = 3.141593
Ç π
ArcK — Constant = 0.017453. This value is equiva-
lent to the constant of a 1° arc angle for a one-unit
value. The formula for this constant is
π ч 180.
З •
Degrees:Minutes:Seconds — Converts between
D:M:S and Decimal Degree formats.
Note: Your calculator uses a floating d:m:s format (that is, dis-
plays decimal degrees to the maximum number of decimal points,
for greater accuracy). If you desire rounding to two decimal points
(0.00°), you must set your calculator via Preference Settings (see
page 107).
Ç =
Access Preference Settings — Used to access
various customizable settings, such as dimensional
answer formats (see Preference Settings on page
107).
MEMORY and STORAGE FUNCTIONS
Your calculator has two types of Memory:
1) basic Memory or Semi-Permanent, Cumulative
μ;
2) non-cumulative Storage Registers (M1-M3).
μ
Semi-Permanent Memory — Adds any displayed
number, dimensioned or unitless, to the semi-per-
manent, accumulating Memory. Values can be sub-
tracted from this Memory using
Ç μ. ® ®
will recall and clear the Memory.
Ç ® will swap
the value stored in accumulative Memory with the
value that is currently displayed.