hp40g+.book Page 30 Friday, December 9, 2005 1:03 AM

 

Typing:

 

EXP2POW(EXP(N · LN(X)))

 

gives:

 

xn

FDISTRIB

Distributivity

 

FDISTRIB has an expression as argument.

 

FDISTRIB enables you to apply the distributivity of

 

multiplication with respect to addition all at once.

 

Typing:

 

FDISTRIB((X+1)·(X+2)·(X+3))

 

gives:

 

x·x·x + 3·x·x + x·2·x + 3·2·x + x·x·1 + 3·x·1 + x·2·1

 

+ 3·2·1

 

After simplification (by pressing ENTER):

 

x3 + 6·x2 + 11·x + 6

LIN

Linearize the exponentials

 

LIN has as an argument an expression containing

 

exponentials and trigonometric functions. LIN does not

 

linearize trigonometric expressions (as does TLIN) but

 

converts a trigonometric expression to exponentials and

 

then linearizes the complex exponentials.

 

LIN puts the calculator into complex mode when dealing

 

with trigonometric functions.

 

Example 1

 

Typing:

 

LIN((EXP(X)+1)3)

 

gives:

 

3·exp(x) + 1 + 3·exp(2·x) + exp(3·x)

 

Example 2

 

Typing:

 

LIN(COS(X)2)

 

gives:

14-30

 

 

Computer Algebra System (CAS)