HP 50g User's Reference Manual
Download Advanced user's reference manual of HP 48gII Calculator for Free or View it Online on All-Guides.com.
Brand: HP
Category: Calculator
Type: Advanced user's reference manual
Model: HP 48gII , HP 49g+ , HP 50G
Pages: 693
Full Command and Function Reference 3-289
example you could define $=1_? Then other currencies could be defined as multiples or fractions
of 1_? The calculator has symbols for Yen, Pounds and Euros; other currencies could be defined
using their names. The unit conversion system would then check conversions between them for
consistency because ? is recognized as a base unit.
Access: Catalog, …µ, or ~…3
∞ (Infinity)
Type: Function
Description: Infinity: used to signify a numeric result that is infinite by the rules of arithmetic, such as the result
of dividing a non-zero number by zero. The calculator recognizes two kinds of infinity: signed
and unsigned. Evaluating '1/0' gives an unsigned infinity '∞'. Selecting infinity from the keyboard,
from the CHARS table, or from the catalog …µ returns '+∞' and the sign can be changed.
Calculations with the unsigned infinity return unsigned infinity or ? as their result. Calculations
with the signed infinity can return ordinary numeric results, as in the example. Positive infinity
and unsigned infinity are equal if tested with ==, but are not identical if tested with SAME.
Access: Keyboard, CHARS, or catalog, …µ
Flags: Exact mode must be set (flag –105 clear),
and numeric mode must not be set (flag –3 clear) for mathematical operations to give ∞ as a
result, and for executing ∞ from the keyboard or catalog to give +∞ and not an error.
Example: Find the arc tangent of minus infinity. Assume that radians mode is set.
Command:
ATAN(-
∞
)
Results:
-(
π
/2)
Σ (Summation)
Type: Function
Description: Summation Function: Calculates the value of a finite series.
The summand argument smnd can be a real number, a complex number, a unit object, a local or
global name, or an algebraic object. The algebraic syntax for Σ differs from the stack syntax. The
algebraic syntax is: 'Σ(index=initial,final,summand)'
Access: …½ (½ is the right-shift of the Skey).
Flags: Symbolic Constants (–2), Numerical Results (–3)
Input/Output:
L4/A1 L3/A2 L2/A3 L1/A4 L1/I1
'indx'
x
init
x
final
smnd
→
x
sum
'indx'
'init'
x
final
smnd
→
'Σ(indx = init, x
final
, smnd)'
'indx'
x
init
'final'
smnd
→
'Σ(indx = x
init
, final, smnd)'
'indx'
'init'
'final'
smnd
→
'Σ(indx = init, final, smnd)'
L = Level; A = Argument; I = Item
Example: The command sequence
'N' 1 5 'A^N' Σ
returns
'(EXP(6*LN(A))-A)/(A-1)'
.
See also: TAYLR,
∫
, ∂
Σ+ (Sigma Plus)
Type: Command
Description: Sigma Plus Command: Adds one or more data points to the current statistics matrix (reserved
variable ΣDAT).
For a statistics matrix with m columns, arguments for Σ+ can be entered several ways: