Polynomial derivative: Difference between revisions
Content added Content deleted
(Add Factor) |
m (→{{header|Factor}}: show full implementation) |
||
| Line 13: | Line 13: | ||
The implementation of <code>pdiff</code>: |
The implementation of <code>pdiff</code>: |
||
<lang factor>: |
<lang factor>USING: kernel math.vectors sequences ; |
||
IN: math.polynomials |
|||
: pdiff ( p -- p' ) dup length <iota> v* rest ;</lang> |
|||
Revision as of 02:14, 9 November 2021
Polynomial derivative is a draft programming task. It is not yet considered ready to be promoted as a complete task, for reasons that should be found in its talk page.
Given a polynomial, represented by an ordered list of its coefficients by increasing degree (e.g. [-1, 6, 5] represents 5x2+6x-1), calculate the polynomial representing the derivative. For example, the derivative of the aforementioned polynomial is 10x+6, represented by [6, 10].
Factor
<lang factor>USING: math.polynomials prettyprint ;
{ -1 6 5 } pdiff .</lang>
- Output:
{ 6 10 }
The implementation of pdiff:
<lang factor>USING: kernel math.vectors sequences ; IN: math.polynomials
- pdiff ( p -- p' ) dup length <iota> v* rest ;</lang>