Always false float comparisons

jmh530 via Digitalmars-d digitalmars-d at puremagic.com
Mon May 16 12:07:54 PDT 2016


On Monday, 16 May 2016 at 18:57:24 UTC, Walter Bright wrote:
> On 5/16/2016 7:32 AM, Andrei Alexandrescu wrote:
>> It is rare to need to actually compute the inverse of a 
>> matrix. Most of the time
>> it's of interest to solve a linear equation of the form Ax = 
>> b, for which a
>> variety of good methods exist that don't entail computing the 
>> actual inverse.
>
> I was solving n equations with n unknowns.
>

LU decomposition is the more common approach.

atlab has a backslash operator to solve systems of equations with 
LU decomposition:

http://www.mathworks.com/help/matlab/ref/inv.html#bu6sfy8-1


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