HP-41CV
SST key is pressed and held down
ST+
Add X to data register nn. Same as „STO +“. See RCL for indirect addressing
modes
ST-
Subtract X from data register nn. Same as „STO -“. See RCL for indirect
addressing modes
ST*
Multiply data register nn with X. Same as „STO *“. See RCL for indirect
addressing modes
ST/
Divide data register nn by X. Same as „STO /“. See RCL for indirect
addressing modes
STO
Store X in data register nn. See RCL for indirect addressing modes
STOP
PRGM mode: Insert a stop instruction which will halt program execution.
Programm can be continued using R/S in RUN mode
Σ
+
Add data to the statistics registers and replace X with the number of values in
Σ
REG. See
Σ
REG.
Σ
-
Substract data from the statistics registers and replace X with the number of
values in
Σ
REG. See
Σ
REG.
Σ
REG
Set the base register number for the 6 statistics registers. Ie. „
Σ
REG 11“ uses
registers 11 to 16 (default):
11:
Sum of X values
12:
Sum of X*X values
13:
Sum of Y values
14:
Sum of Y*Y values
15:
Sum of X*Y values
16:
Number of values
TAN
Tangent using current trigonometry mode
TONE
Play a tone with a frequency proportional to n (0 – 9). The argument can
indirectly be obtained from a register: „TONE SHIFT 00“ uses the number in
data register 0 as frequency parameter
VIEW
Display contents of register nn without overwriting the X register.
Press
←
to return to normal stack display.
See RCL for indirect addressing modes
X=0?
X
≠
0?
X<0?
X<=0?
X>0?
X=Y?
X
≠
Y?
X<Y?
X<=Y?
X>Y?
Check whether X is 0 and other comparisn operations.
PRGM mode: If the condition is true the next program step is executed,
otherwise it is skipped.
RUN mode: The test result is displayed (YES or NO)
X<>
Swap X register with data register nn. See RCL for indirect addressing modes
X<>Y
Swap X and Y register
XEQ
Execute a built-in function or user program. A maximum of 6 user-subroutines
can be stacked. Ie. „XEQ ALPHA MEAN ALPHA“ calculates the statistical
mean value. See RCL for indirect addressing modes
X
↑
2
Square of X
Y
↑
X
Y to the power of X. Y may be negative if X is integer
7
