a26fbc64-924e-41da-a2e5-d85209b75bea 5 4 5 fraction

&[DATE] &[TIME] - &[FILENAME]

Silent bug

A 1221 - 22 mat :

B 1 - 12122 mat :

C 1 - 21422 mat :

I 2 identity :

v1 1.6 0.7 2.6 1.7 22 mat :

v2 0.7 0.2 1.1 1.6 22 mat :

s f C s I * A - (1 -^(* B * :

XY 1234567891067891012345210 mat transpose :

s f maple Stack empty.

The Maxima example forum agrees with Mathcad 11. In native Smath => "Error" [bug]. What we don't know by inspection => is f(5) a pseudo form ? resulting from (s*I-A)^-1 ... If the two forms would =, they should rotate =

Bug "ad absurdum"

XY v1 * XY v2 * 2 1 sys

5 f 1.6 0.7 2.6 1.7 22 mat

Mathcad 11 0.7 0.2 1.1 1.6 22 mat ≡

5 f eval 1.6 0.7 2.6 1.7 22 mat

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Gram-Schmidt Polynomial [create]

f g prod x f x g * x 1 - 1 int :

x f3 x 2^:

x f4 x 3^:

x f1 1 :

x f2 x :

x o1 x f1 :

x o2 x f2 o1 f2 prod o1 o1 prod / x o1 * - :

x o3 x f3 o1 f3 prod o1 o1 prod / x o1 * - o2 f3 prod o2 o2 prod / x o2 * - :

x o4 x f4 o1 f4 prod o1 o1 prod / x o1 * - o2 f4 prod o2 o2 prod / x o2 * - o3 f4 prod o3 o3 prod / x o3 * - :

x o1 x o2 x o3 x o4 4 1 sys

collect x o1 x o2 x o3 x o4 41 sys :

collect 11 - x + x 1 - x + (* x 2^1 - x + (* 41 sys

The "bug" is mystic [can't explain]. As it looks, this is Maxima task. As it concludes: "Maxima bug" ... This project is Mathcad 8 Pro. OK. NOT reproducible in Smath. Image below => Mathcad 11