HP -42S Manual page 31

Name Description
the index pointers are at the last (lower-right) element in the matrix.
GTO Go to label. From the keyboard, move the program pointer to the specified label. In a
running program, cause the program to branch to the specified label. Parameter: local
or global label (indirect allowed)
HEXM Select Hexadecimal mode (base 16).
HMS+ Add x and y using H.MMSSss (hours-minutes-seconds) format.
HMS– Subtract x from y using H.MMSSss format.
I+ Increment the row pointer in the indexed matrix.
I– Decrement the row pointer in the indexed matrix.
INDEX Index a named matrix. Parameter: variable name (indirect allowed)
INPUT Recall a register or variable to the x-register, display the name of the register or
variable along with the contents of the x-register, and halt program execution. Pressing
R/S (or ■SST) stores x into the register or variable; pressing EXIT cancels. (Used
only in programs.) Parameter: register or variable (indirect allowed)
INSR Insert a row in the indexed matrix.
INTEG Integrate the selected integration program with respect to the specified variable.
Parameter: variable name (indirect allowed)
INVRT Returns the inverse of the matrix in the x-register.
IP Returns the integer part of x
ISG Increment, Skip if Greater. Given ccccccc.fffii in a variable or register, increments
ccccccc by ii and skips the next program line if ccccccc is now > fff. Parameter:
register or variable (indirect allowed)
J+ Increment the column pointer in the indexed matrix.
J– Decrement the column pointer in the indexed matrix.
KEYASN Selects key-assignments mode for the CUSTOM menu.
KEYG On menu key, go to. Branch to specified label to when a particular menu key is
pressed. Parameter 1:: Key number (1 through 9), Parameter 2: program label (global
or local)
KEYX On menu key, execute. Execute (as a subroutine) specified label when a particular
menu key is pressed. Parameter 1:: Key number (1 through 9), Parameter 2: program
label (global or local)
LASTX Last x. Recall the last value of x used in a calculation.
LBL Label. Identify programs and routines for execution and branching. Parameter: local or
global label.
LCLBL Select Local label mode for the CUSTOM menu (to use CUSTOM menu assignments
to execute local labels within the current program).
LlNF Select the linear curve-fitting model.
LINΣ Select Linear statistics mode, which uses six summation coefficients.
LIST Print a portion of a program listing. (Not programmable.) Parameter: number of lines.
LN Natural logarithm. Returns ln(x).
LN1+X Natural logarithm for values close to zero. Returns ln(1 + x), which provides a much
higher accuracy in the fractional part of the result.
LOG Common logarithm. Returns log
LOGF Select the logarithmic curve-fitting model.
MAN Select Manual print mode.
MAT? If the x-register contains a matrix, execute the next program line; if the X-register does
not contain a matrix, skip the next program line.
MEAN Mean. Returns the mean of x-values (Σx / n) and the mean of y-values (Σy / n).
MENU Select the programmable menu.
MOD Modulo. Returns the remainder for y / x.
MVAR Declare a menu variable in a SOLVER program. Parameter: variable name.
N! Factorial. Returns x!.
NEWMAT New matrix. Creates a y × x matrix in the x-register.
NORM Select Normal print mode, which prints a record of keystrokes.
(x).
10