- 248 名前：デフォルトの名無しさん mailto:sage [2018/11/07(水) 13:01:59.20 ID:jk7t6Ngg.net]
- >>230 Pharo Smalltalk w/PolyMath >>232っぽく
"Metacello new
repository: 'github://PolyMathOrg/PolyMath:master/src';
baseline: 'PolyMath';
load"
| fn |
fn := [:points |
| xs ys xp |
xs := points collect: #x.
ys := points collect: #y.
xp := (PMMatrix rows: ((xs size - 1 to: 0 by: -1) collect: [:m | xs raisedTo: m])) transpose.
(xp inverse * ys asPMVector) asArray
].
fn value: {0@1. 1@3}. "=> #(2 1) "
fn value: {100@100}. "=> #(100) "
fn value: {0@1. -1@5. 2@2. 4@ -1. 1@0}. "=> {(-2/15) . (4/15) . (49/30) . (-83/30) . 1} "
|
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