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: |
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| Computer Algebra System (CAS) | |||
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