hp40g+.book Page 29 Friday, December 9, 2005 1:03 AM
| Typing: |
| DISTRIB((X+1)·(X+2)·(X+3)) |
| gives: |
| x ⋅ (x + 2) ⋅ (x + 3) + 1 ⋅ (x + 2) ⋅ (x + 3) |
EPSX0 | Disregard small values |
| EPSX0 has as a parameter an expression in X, and returns |
| the same expression with the values less than EPS |
| replaced by zeroes. |
| Typing: |
| EPSX0(0.001 + X) |
| gives, if EPS=0.01: |
| 0 + x |
| or, if EPS=0.0001: |
| .001 + x |
EXPLN | Transform a trigonometric expression into complex |
| exponentials |
| EXPLN takes as an argument a trigonometric expression. |
| It transforms the trigonometric function into exponentials |
| and logarithms without linearizing it. |
| EXPLN puts the calculator into complex mode. |
| Typing: |
| EXPLN(SIN(X)) |
| gives: |
| 1 |
| exp(i ⋅ x) – |
| exp(i ⋅ x) |
| |
| 2 ⋅ i |
EXP2POW | Transform exp(n∗ln(x)) as a power of x |
| EXP2POW transforms an expression of the form |
| exp(n × ln(x)), rewriting it as a power of x. |
Computer Algebra System (CAS) |
| ||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|