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SolveTools

  

Combine

  

perform various combining of the expressions

 

Calling Sequence

Parameters

Description

Examples

Calling Sequence

Combine(expr, options)

Parameters

expr

-

expression

options

-

(optional) one or more of 'ln', 'exp', or 'power'

Description

• 

The Combine command combines expressions.

• 

The Combine command performs the following transformations after calling SolveTools[CancelInverses] on the expr first.

• 

If the option 'ln' is specified, the transformation is the following.

ajlnx++ailnyalnxjyi+

• 

If the option 'exp' is specified, the transformations are the following.

expxiexpyjexpix+jy

expxbexpxb

• 

If the option 'power' is specified, the transformations are the following.

xbixcjxib+jc

xyzxyz

abexpblna

  

The last transformation is only done if ⅇblna is already present.

• 

In all of the previous transformations, i and j denote integers.

• 

If no options are specified, all combinations are performed.

  

Note: Not all simplifications are valid everywhere. You should be aware of this when calling Combine.

Examples

withSolveTools:

Combine3xlny+4xlnz+ⅇt5ⅇs6

ⅇ5t+6s+xlny3z4

(1)

Combine3xlny+4xlnz+ⅇt5ⅇs6,'ln'

ⅇt5ⅇs6+xlny3z4

(2)

Combine3xlny+4xlnz+ⅇt5ⅇs6,'exp'

3xlny+4xlnz+ⅇ5t+6s

(3)

Combinexy5+xz6+5tlnz+6tlnx,'power'

x5y+x6z+5tlnz+6tlnx

(4)

Combinexy5+xz6+5tlnz+6tlnx,'power','ln'

x5y+x6z+tlnx6z5

(5)

Combineab+2ⅇblna

3ⅇblna

(6)

See Also

exp

SolveTools

SolveTools[CancelInverses]

 


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