
Please post any and all homework or other textbookstyle problems in one of the Homework & Coursework Questions...

Feb2313 09:24 AM
micromass

1 
35,947 
How to detect redundant equation from a system of nonlinear equation?
It means how to find out a system of nonlinear...

May2612 06:02 AM
algebrat

3 
2,650 
A quadratic diophantine equation is of form:
Ax^2 + Bxy + Cy^2 +Dx + Ey + F =0
Now, for A=0 and C=0,
Bxy + Dx...

Apr2312 03:06 PM
coolul007

3 
2,768 
Hello,
I have a linear algebra problem that I need help with.
Basically, I need to get the eigenvalues and...

Apr1212 09:13 AM
HallsofIvy

3 
4,106 
let's say you are given the following matrix T:
T11 T12 . . . T1n
T21 T22 . . . T2n
. ...

Apr712 04:12 PM
morphism

3 
1,478 
On a finitedimensional vector space over R or C, is every norm induced by an inner product?
I know that this can...

Apr612 08:52 AM
morphism

3 
1,628 
Given a differential field F and a linear algebraic group G over the constant field C of F, find a PicardVessiot...

Apr1112 11:29 AM
morphism

3 
1,277 
So when dealing with a linear transformation, after we have computed the matrix of the linear transformation, and we...

Apr912 06:10 PM
stripes

3 
1,179 
i am having trouble understanding some of the "basic" concepts of my linear algebra...any help would be greatly...

Apr1312 07:04 PM
Sankaku

3 
1,472 
Hi! I am a new user who is not an expert with Linear Algebra at all.
I have some questions about eigen...

Apr1212 05:25 PM
HallsofIvy

3 
1,675 
Is it true that if an n by n matrix A has nlinearly independent eigenvectors, then it must also be invertible because...

Apr1612 11:28 AM
ajkoer

3 
2,277 
All the proofs I have seen for this theorem uses the same argument: First prove that the identity permutation has even...

Apr1712 05:38 PM
DonAntonio

3 
1,453 
I have a question; help is welcome.
Let sn be a linear, nonhomogeneous recurrence sequence, and let hn be a...

Apr1912 01:50 PM
dodo

3 
3,043 
Hi, I have read my notes and understand the theory, but I am having trouble understanding the following questions...

Apr1912 06:30 PM
juanma101285

3 
1,344 
Hi,
I have a square symmetrical matrix A (ugly I know)
321.1115, 57.5311, 33.9206
57.5311, ...

Apr1912 08:10 AM
Dr Bwts

3 
1,029 
 Jim Hefferon: Linear algebra
Theorem 1.5 (Gauss' method). If a linear system is changed to another by one of...

Apr2512 03:02 AM
isaac200

3 
1,326 
I am writing an undergraduate "thesis" on group representations (no original work, basically a glorified research...

Apr2412 08:51 AM
Stephen Tashi

3 
1,017 
in 1994, as most of you know, andrew wiles was the first to solve fermat's last theorem.. 3 years later chike obo...

Apr2212 04:10 PM
QuarkCharmer

3 
2,752 
Hi
I know the dimension is 3, two polynomials has dimension 2 only so it cannot span P2.
How would I go about...

Apr2412 09:38 AM
DonAntonio

3 
1,868 
Suppose I have a matrix that looks like this
2.415212e09 9.748863e10
2.415212e09...

Apr2512 03:21 AM
FoldHellmuth

3 
1,753 
So the equation is x'' + 10x' + 64x = 0
x(0) = 1
x'(0) = 0
I get general solution of e^(5t)(c1*cos(6.245t) +...

Apr2912 11:51 PM
FHamster

3 
1,395 
Hi all,
I got this question from a past exam paper does the point (8 , 4 , 5) lie on the plane 7x  3y + 4z = 8?...

Apr2812 01:15 PM
HallsofIvy

3 
1,966 
I'm having a hard time visualising them.
How do you plot vector fields
How do you plot spanning sets?
How do you...

May312 08:00 PM
chiro

3 
1,126 
Im having trouble under stand the relationships between determinats, span, basis.
Given a 3x3 matrix on R3 vector...

May812 04:37 PM
am_knightmare

3 
1,116 
I am wondering how to organise all of those concepts in my head.
should i think of it like:
subspace > vectorspace...

May2612 08:12 AM
algebrat

3 
1,551 
Hi all. I have a quick question
In this wikilink en.wikipedia.org/wiki/Positivedefinite_matrix in the first...

May1112 08:00 PM
chiro

3 
1,093 
Hi all,
How do you find out if this Parametric equation
x = 2t + 3 ; y = t  1 ; z = 3t + 2
Is...

May1312 08:38 AM
HallsofIvy

3 
2,812 
Why is norm of (pauli matrix)/sqrt(2)=1

May1312 08:44 AM
HallsofIvy

3 
1,509 
Let \begin{equation*}
A=%
\begin{bmatrix}
0 & 1 & \cdots & n1 & n \\
1 & 0 & \cdots & n2 & n1 \\
\vdots &...

May1412 05:53 AM
tinytim

3 
1,579 
Hi:
I am a newbie to linear algebra; I have a problem about
vector space and subspaces. How to distinguish these...

May1712 05:44 PM
applechu

3 
1,042 
Hello,
The formulation of the question says:
Show, using congruences and disjunction of cases, which,for all...

May1712 08:09 PM
ramsey2879

3 
2,205 
Is it correct to say that any order 4 group is only isomorphic to either
C4 or C2+C2 ?
where C4 is the order 4...

May2312 03:10 PM
lpetrich

3 
1,751 
There is a difference between the multiplication op in the Field of Reals and the Scaling op in the Set of Vectors. In...

May2312 04:57 PM
SteveL27

3 
1,439 
good day! i need to prove that the alternating group An is a normal subgroup of symmetric group, Sn, and i just want...

May2612 07:34 PM
haruspex

3 
1,192 
I'm doing a particular form of regression that gives a eigenvector and matrix for the solution. I'm using two matrix...

May3112 08:51 PM
chiro

3 
1,299 
Ok, to start off I have been examining the structure of polynomials. For instance, consider the general polynomial
...

Jun112 02:38 PM
galoisjr

3 
1,374 
i'm trying to find a version of PARI or PARI/GP or a comparable number theory program that will run on my MacBook Pro....

Jun1612 01:19 AM
TylerH

3 
2,169 
What is the LaTex and infinite sum for 121/2+31/241/2+51/2 . . .
Does it converge anyway?
I am too old for...

Jun512 04:16 AM
Xitami

3 
2,211 
Show that a rotation by θ followed by a rotation by φ can be expressed as either
two consecutive rotations, or one...

Jun1312 03:47 PM
HallsofIvy

3 
1,289 
Is there such a thing as a "feral polynomial" ? Saw it mentioned on an Internet forum where someone claimed to be...

Jun1612 11:52 AM
HallsofIvy

3 
977 
Here's a question. Pi is said to be the ratio of a circle's circumference to its diameter. If this is the case, what...

Jun2112 08:23 PM
SteveL27

3 
2,307 