Exlr; Ex&Ln; Exp - HP 48gII Advanced User's Reference Manual

Object Type
Tagged
Algebraic
Command, Function, XLIB Name
Other Objects
To evaluate a symbolic argument to a numerical result, evaluate the argument in Numerical
Results mode (flag –3 set) or execute
N
Access:
Flags: Numerical Results (–3)
Input/Output:
See also: NUM, SYSEVAL

EXLR

CAS: Return the left- and right-hand sides of an equation as separate expressions.
EX&LN
CAS: Display a menu or list of CAS exponential and logarithmic operations.

EXP

Type: Analytic Function
Description: Exponential Analytic Function: Returns the exponential, or natural antilogarithm, of the
argument; that is, e raised to the given power.
EXP uses extended precision constants and a special algorithm to compute its result to full 12-
digit precision for all arguments that do not trigger an underflow or overflow error.
EXP provides a more accurate result for the exponential than can be obtained by using e
The difference in accuracy increases as z increases. For example:
For complex arguments: e
!¸
Access:
Flags: Numerical Results (–3)
If the tag specifies a port, recalls and evaluates the
specified object. Otherwise, puts the untagged object
on the stack.
Enters each object in the algebraic expression:
• Names are evaluated.
• Commands are evaluated.
• Other objects are put on the stack.
Evaluates the specified object.
Puts the object on the stack.
Level 1/Argument 1
obj
z EXP(z)
3 20.0855369232
10 22026.4657948
100 2.68811714182E43
500 1.40359221785E217
1000 1.9707111402E434
= e cosy + ie
(x,y) x
Effect of Evaluation
NUM on that argument.
z
e
20.0855369232
22026.4657949
2.68811714191E43
1.40359221809E217
1.9707111469E434
siny
x
( ¸is the left-shift of the Qkey).
Full Command and Function Reference 3-59
Level 1/Item 1
(see above)
Q .