[bug #68434] Function gsvd crashes when matrices have 10 or more columns
Ian Proudler <[email protected]> Sun, 5 Jul 2026 04:07:06 -0400 (EDT)
| Newsgroups | gmane.comp.gnu.octave.bugs |
|---|---|
| Message-ID | <[email protected]> |
--===============1207149735726806232== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline UGxlYXNlIHVzZSB0aGUgYnVnIHRyYWNrZXIgdG8gcG9zdCB1cGRhdGVzIHRvIGEgYnVnIHJlcG9y dC4gIFRoZSBtYWlsaW5nIGxpc3QgaXMgaW50ZW5kZWQgYXMgYSByZWFkLW9ubHkgbm90aWZpY2F0 aW9uIHN0cmVhbS4gIEluZm8gcG9zdGVkIHRvIHRoaXMgbWFpbGluZyBsaXN0IGFkZHJlc3Mgd29u J3QgYXBwZWFyIGluIHRoZSB0cmFja2VyIGRhdGFiYXNlIHdoZXJlIGl0IGlzIG1vc3QgdXNlZnVs LgoK --===============1207149735726806232== Content-Type: MULTIPART/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; BOUNDARY="8323329-424238335-1783238826=:3157194" Content-Disposition: inline --8323329-424238335-1783238826=:3157194 Content-Type: TEXT/plain; CHARSET=utf-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Content-Disposition: inline Follow-up Comment #25, bug #68434 (group octave):=0A=0AFor what it's worth:= =0A=0AI've rebuilt Octave using the new files.=0A=0AI generated 20,000 rand= om matrices, both real and complex, where=0A size(A) =3D (N,M)=0A size(B)= =3D (P,M)=0Aand N,P,M were each chosen randomly between 2 and 100.=0A=0AFo= r each matrix pair, I calculated=0A [U, V, X, C, S] =3D gsvd(A, B)=0Aand = checked that=0A norm(A - U*C*X') < 1e-10=0A norm(B - V*S*X' < 1e-10=0A n= orm(C'*C + S'*S - eye(R)) < 1e-10=0Awhere R =3D rank([A;B]).=0A=0AAll the m= atrices passed the tests.=0A=0A=0A=0A=0A=0A ____________________________= ___________________________=0A=0AReply to this item at:=0A=0A <https://sav= annah.gnu.org/bugs/?68434>=0A=0A___________________________________________= ____=0AMessage sent via Savannah=0Ahttps://savannah.gnu.org/=0A --8323329-424238335-1783238826=:3157194 Content-Type: APPLICATION/pgp-signature; name=signature.asc -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQQk97aszIMMAvLLwm6qLAuaBUf3TgUCakoQqgAKCRCqLAuaBUf3 Tqr/AP4jC5sP5dPI+EAZT0ZJwhoUrYH3+66YGm9pbJShZU5/9AD+PO73pBCG3F6p KT4UNcYOt0panUD0FA4X+DudFbDwkwM= =B7qh -----END PGP SIGNATURE----- --8323329-424238335-1783238826=:3157194-- --===============1207149735726806232==--