HP 50g User's Reference Manual
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Brand: HP
Category: Calculator
Type: Advanced user's reference manual
Model: HP 48gII , HP 49g+ , HP 50G
Pages: 693
3-78 Full Command and Function Reference
Access: Catalog, …µ
Input: An equation.
Output: Level 2/Item 1: The expression to the left of the “=” sign in the original equation, or, if the input
is an expression and not an equation, the independent variable.
Level 1/Item 2: The expression to the right of the “=” sign in the original equation, or, if the
input is an expression, the expression.
Flags: Numeric mode must not be set (flag –3 clear).
In Algebraic mode (flag –95 set), the output expressions are evaluated (variables are replaced by
numeric values) before the result is returned.
Example: Split the following equation into its two component expressions: sin(x)=5x+y
Command:
EXLR(SIN(X)=5*X+Y)
Result:
{SIN(X), 5*X+Y}
See also: FXND
EXP&LN
Type: Command
Description: Displays a menu or list of the CAS exponential and logarithmic operations.
Access: Catalog, …µ
Flags: If the CHOOSE boxes flag is clear (flag –117 clear), displays the operations as a numbered list. If
the flag is set, displays the operations as a menu of function keys.
See also: ALGB, ARIT, CONSTANTS, DIFF, INTEGER, MAIN, MATHS, MATR, MODULAR,
POLYNOMIAL, REWRITE, TESTS, TRIGO
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
Q
.
The difference in accuracy increases as z increases. For example:
z
EXP(
z
)
e
z
3 20.0855369232 20.0855369232
10 22026.4657948 22026.4657949
100 2.68811714182E43 2.68811714191E43
500 1.40359221785E217 1.40359221809E217
1000 1.9707111402E434 1.9707111469E434
For complex arguments: e
(x,y)
= e
x
cosy + ie
x
siny
Access: !¸ ( ¸is the left-shift of the Qkey).
Flags: Numerical Results (–3)