Reference Guide

Full Command and Function Reference 3-79
Input/Output:
Level 1/Argument 1 Level 1/Item 1
z
→
e
z
'symb'
→
'EXP(symb)'
See also: ALOG, EXPM, LN, LOG
EXP2HYP
Type: Function
Description: Converts expressions involving the exponential function into expressions with hyperbolic
functions.
Access: Catalog, …µ
Input: An expression
Output: The rewritten expression.
Flags: Exact mode must be set (flag –105 clear).
Numeric mode must not be set (flag –3 clear).
Example: Rewrite in terms of hyperbolic functions the expression
e
5
x
(
)
ln
⋅
Command: EXP2HYP(EXP(5*LN(X)))
Result: SINH(5*LN(X))+COSH(5*LN(X))
EXP2POW
Type: Function
Description: Simplifies expressions involving the composition of the exponential and logarithmic functions.
Compare this to LNCOLLECT which combines logarithmic terms; the difference is shown in the
results of the second example used here and for LNCOLLECT.
Access: !Ú REWRITE
Input: An expression
Output: The simplified expression.
Flags: Exact mode must be set (flag –105 clear).
Numeric mode must not be set (flag –3 clear).
Example 1: Simplify the expression e
5·ln(x)
Command: EXP2POW(EXP(5*LN(X)))
Result: X
5
Example 2: Simplify the expression e
n·ln(x)
Command: EXP2POW(EXP(N*LN(X)))
Result: X
N
See also: LNCOLLECT
EXPAN
Type: Command
Description: Expand Products Command: Rewrites an algebraic expression or equation by expanding products
and powers. This command is similar to the old HP 48G series command, with minor
modifications (such as adding RISCH for integration).
Access: …µ EXPAN