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answered How can I add the following 32-bit IEEE floating-point numbers?
Jan
28
comment The purpose of LU Decomposition
Can you give an example of where in the real world you have such a system?
Jan
28
answered The purpose of LU Decomposition
Jan
28
revised Convert the following decimal number into 32-bit IEEE floating-point form.
added 1 character in body
Jan
28
revised Convert the following decimal number into 32-bit IEEE floating-point form.
added 1 character in body
Jan
28
answered Convert the following decimal number into 32-bit IEEE floating-point form.
Jan
27
answered Inverse operator of $I-A$
Jan
27
comment Inverse operator of $I-A$
$\sum_{n} \left\|A\right\|^{n}$ isn't convergent in general, that's the whole point of this problem.
Jan
27
comment Solving a PDE to Yield Determining Equations
Just a guess: Isn't that an ansatz to make solving the problem easier?
Jan
27
revised Is this a bounded linear map?
deleted 10 characters in body
Jan
27
comment Why heat equation is not time-reversible? (Time arrow in mathematics)
I think this answers the question why does the heat equation model heat conduction? more than why is the heat equation not time reversible? Still, so much more insight here . . .
Jan
26
answered Is this a bounded linear map?
Jan
25
comment How to improve stability of numerical solutions to partial differential equations
Since you say your equation is non-linear, I have to ask: Are you sure the solution doesn't blow up?
Jan
24
answered Solving a homogeneous system of three ODEs with variable coefficients.
Jan
24
answered Solving a homogeneous system of three ODEs with variable coefficients.
Jan
24
comment Solving a homogeneous system of three ODEs with variable coefficients.
Nice catch; fixed!
Jan
24
revised Solving a homogeneous system of three ODEs with variable coefficients.
Fixed mistake
Jan
23
comment GMRES and Preconditioning
You need to estimate the condition number of $PA$; see scicomp.stackexchange.com/questions/6805/…
Jan
22
comment Fredholm integral equation
@Syriamath: Dude!
Jan
22
revised Solving a homogeneous system of three ODEs with variable coefficients.
deleted 82 characters in body