The problem is rounding error. Over the rationals:
sage: A = matrix(3, 3, [QQ(a) for a in [1, 0.106, 1.212, 3.8759765625,
0.04801171875, 3.972, 3.0625, 0.09325, 3.249]])
sage: A
[ 1 53/500 303/250]
[ 3969/1024 12291/256000 993/250]
[ 49/16 373/4000
Hi tvn,
Am Montag, den 17.01.2011, 14:22 -0800 schrieb tvn:
I try to solve for 3 variables x y z with 3 equations as below ,
I am expecting something like z = r1, x = -r1, y = -2*r1 but instead
get x = y = z = 0 (which trivially valid though not expected). Is
this because the numbers
On Tuesday, January 18, 2011 10:19:58 AM UTC-7, einek wrote:
Hi tvn,
Am Montag, den 17.01.2011, 14:22 -0800 schrieb tvn:
I try to solve for 3 variables x y z with 3 equations as below ,
I am expecting something like z = r1, x = -r1, y = -2*r1 but instead
get x = y = z = 0 (which
On Tuesday, January 18, 2011 10:19:58 AM UTC-7, einek wrote:
Hi tvn,
Am Montag, den 17.01.2011, 14:22 -0800 schrieb tvn:
I try to solve for 3 variables x y z with 3 equations as below ,
I am expecting something like z = r1, x = -r1, y = -2*r1 but instead
get x = y = z = 0 (which
I try to solve for 3 variables x y z with 3 equations as below , I am
expecting something like z = r1, x = -r1, y = -2*r1 but instead get x = y
= z = 0 (which trivially valid though not expected). Is this because the
numbers used too complex (equation 2) and have some rounding errors
