HP -225 Owner's Manual page 190

Function
Keys and Description
SC
SHOW
SIN
SINH
SOLVE
STAT
STO
STO +
STO —
STO x
STO -+
SWAP
SX
sy
TAN
TANH
@(Disp] {sc}
Sets scientific display mode.
@(sHow]
Temporarily shows all 12 digits of number.
Sine.
B(HvP] (sIN)
Hyperbolic sine.
@(SOLVE]
Solves the current equation for any variable.
Displays menu for accessing statistical functions.
variable
Stores the displayed number into the designated
variable or polar/rectangular conversion register.
variable
Stores variable + displayed number into variable.
(=] variable
Stores variable — displayed number into variable.
(x] variable
Stores variable x displayed number into variable.
variable
Stores variable + displayed number into variable.
B(swap
Interchanges numbers separated by an operator or
colon.
{s} {sx}
Standard deviation of the x statistical data.
1s} {s»}
Standard deviation of the y statistical data.
TAN
Tangent.
B(HvP] [(TAN]
Hyperbolic tangent.
23
26
45
51
77
62
37
39
39
39
39
36
63
63
45
51
182 Function Index