HP HP-11C - Functionkeyindex

Function Key Index
(ON]Turns the
calculator’s display
on and off (page 16).
Conversions
Converts polar
magnitude r and
angle 8in X- and Y-
registers respectively
to rectangular x and
y coordinates (Page
52).
(®P]Converts x, y
rectangular
coordinates placed in
X- and Y-registers
respectively to polar
magnitude r and
angle 6 (Page 51).
Converts
decimal hours—or
degrees—to hours,
minutes, seconds—
or degrees, minutes,
seconds—(Page 46).
[(®H]Converts hours,
minutes, seconds—
or degrees, minutes,
seconds—to decimal
hours—or degrees—
(Page 47).
Converts
degrees to radians
(Page 47).
Converts
radians to degrees
(Page 47).
Digit Entry
Enters a copy
of a number in
displayed X-register
into Y-register; used
to separate multiple
number entries
(Page 27).
(CHS]Changes sign
of number or
exponent of 10 in
displayed X-register
(Page 17).
(EEX]Enter Exponent;
next digits keyed in
are exponents of 10
(Page 71).
0 through 9 Digit
keys.
(- ]Decimal point.
Display Control
Selects fixed
point display mode
(Page 67).
Selects
scientific notation
display mode (Page
68).
Selects
engineering notation
display mode (Page
70).
Mantissa. Pressing
[f]CLEAR
displays all 10
significant digits of
the number in the X-
register as long as
the [PREFIX key is
pressed; clears any
partial key
sequences—refer to
CLEAR
(Page 72).
Hyperbolics
[HYP](SIN],
[HYP](cos],
(HYP](TAN]Compute
hyperbolic sine,
hyperbolic cosine, or
hyperbolic tangent,
respectively, of
number in displayed
X-register (Page 48).
(HYPT](SIN],
[HyPT][cos ],
(HYPT)(TAN]Compute
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