HP HP-10C

108
Function Key Index
= Turns the
calculator's display on
and off.
Conversions
; Converts polar
magnitude r and
angle θ in X- and Y-
registers respectively
to rectangular x- and
y-coordinates (Page
38)
: Converts x-, y-
rectangular
coordinates placed in
X- and Y-registers
respectively to polar
magnitude r and
angle θ (Page 38).
h Converts
decimal hours (or
degrees) to hours,
minutes, seconds (or
degrees, minutes,
seconds) (Page 35).
À Converts hours,
minutes, seconds (or
degrees, minutes,
seconds) to decimal
hours (or degrees)
(Page 36).
r Converts
degrees to radians
(Page 36).
d Converts
radians to degrees
(Page 36).
Digit Entry
v Enters a copy
of a number in display
(X-register) into Y-
register; used to
separate multiple
number entries (Page
14).
” Changes sign of
number or exponent
of 10 in display (X-
register) (Page 13).
“ Enter exponent;
next digits keyed in
are exponents of 10
(Page 13).
0 through 9 Digit
keys.
. Decimal point.
Display Control
•n Selects fixed
point display mode
(Page 49).
in Selects
scientific notation
display mode (Page
50).
^n Selects
engineering notation
display mode (Page
51)
Mantissa. Pressing
´CLEAR u
displays all 10 digits
of the number in the
X-register as long as
the u key is
held down (Page 52)
It also clears any
partial key sequences
(refer to Clearing
Prefixes, Page 13).
Logarithmic and
Exponential
N Computes natural
logarithm of number
in display (X-register)
(Page 36).
' Natural
antilogarithm. Raises
e to power of number
in display (X-register)
(Page 36).
o Computes
common logarithm
(base 10) of number
in display (X-register)
(Page 36).
@ Common
antilogarithm. Raises
10 to power of