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Recent questions tagged matrix
0
votes
1
answer
1
Engineering mathematics
If A is a non-zero column matrix of order n×1 and B is a non-zero row matrix of order 1×n then rank of AB equals ? Rank(ab) can be zero???
GateOverflow04
asked
in
Linear Algebra
Sep 21
by
GateOverflow04
66
views
engineering-mathematics
linear-algebra
matrix
self-doubt
2
votes
2
answers
2
Made Easy: Linear Algebra (MSQ)
Let $A$ be a $3$ x $3$ matrix with rank $2$. Then, $AX=0$ has The trivial solution $X=0$. One independent solution. Two independent solution. Three independent solution.
DebSujit
asked
in
Linear Algebra
Sep 19
by
DebSujit
115
views
linear-algebra
engineering-mathematics
rank-of-matrix
matrix
system-of-equations
1
vote
0
answers
3
Self doubt.
If A, B & C are matrices & AB=AC then B=C? as we know it is not always true because when A is singular matrix then B=C not possible so what is the right ans to say B=C is (always not equal) or (may or may not be equal) or (simply not equal)?
Nisha Bharti
asked
in
Linear Algebra
Sep 19
by
Nisha Bharti
82
views
matrix
determinant
0
votes
0
answers
4
data structure using c, by yaswant kanethkar
Explain the method to calculate the address of an element in an array. A 25*4 matrix array DATA is stored in memory in ‘row-major order’. If base address is 200 and 4 words per memory cell. Calculate the address of DATA [12, 3]…??
akama
asked
in
DS
Sep 11
by
akama
98
views
data-structures
array
matrix
0
votes
0
answers
5
Eigen Value Of A Matrix
For given Matrix: [ 1 2 3 1 5 1 3 1 1 ] Why does the sum of the eigen values of above matrix is the sum of diagonal elements of that matrix?
ryandany07
asked
in
Linear Algebra
Sep 4
by
ryandany07
66
views
eigen-value
matrix
engineering-mathematics
0
votes
0
answers
6
Linear Algebra
MX = O is a homogeneous equation and such an equation when |M| = 0 has non trivial solution. M: Square Matrix O: Null Matrix Kindly help me with the above statement.
ryandany07
asked
in
Mathematical Logic
Aug 30
by
ryandany07
73
views
engineering-mathematics
linear-algebra
matrix
3
votes
1
answer
7
Data Structures,Algorithms&Applications In c++ page-249 Q-34
In an n x n C-matrix, all terms other than those in row 1, row n, and column 1 are zero. A C-matrix has at most 3n-2 nonzero terms. A C-matrix may be compactly stored in one-dimensional array by first storing row 1, then row n, and then the remaining column 1 elements. Calculate the location of an element A(i, j)?
Abhi_1o1
asked
in
DS
Aug 26
by
Abhi_1o1
163
views
data-structures
array
matrix
0
votes
0
answers
8
ISI 2021 | PCB CS | Question: 4
Let $A$ be a matrix of size row $\times$ col. $A$ has to be filled in a spiral clockwise fashion with successive integers from $1,2, \ldots$, row $\times$ col starting from the top left corner. For example, a $3 \times 4$ ... (int *)); for(i=0;i<row;i++){ A[i] = (int *)calloc(col,sizeof(int)); } spiralFill(A,row,col); }
Lakshman Patel RJIT
asked
in
Programming
Aug 8
by
Lakshman Patel RJIT
34
views
isi2021-pcb-cs
programming
programming-in-c
functions
matrix
descriptive
0
votes
1
answer
9
ISI 2020 | PCB Mathematics | Question: 3
Suppose $A$ is an $(n \times n)$ matrix over $\mathbb{R}$ such that $A^{p}=0$ for some positive integer $p$. Prove that $I+A$ is an invertible matrix, where $I$ is the $(n \times n)$ identity matrix. Find the characteristic polynomial of $A$.
Lakshman Patel RJIT
asked
in
Linear Algebra
Aug 8
by
Lakshman Patel RJIT
39
views
isi2020-pcb-mathematics
descriptive
linear-algebra
matrix
1
vote
1
answer
10
Eigen Values of an orthogonal matrix will always be +1 and the modulus will also be always |1|?
Eigen Values of an orthogonal matrix will always be +1 and the modulus will also be always |1|? I have a doubt on this point .
samarpita
asked
in
Linear Algebra
May 9
by
samarpita
887
views
linear-algebra
eigen-value
matrix
4
votes
2
answers
11
GATE CSE 2022 | Question: 10
Consider the following two statements with respect to the matrices $\textit{A}_{m \times n}, \textit{B}_{n \times m}, \textit{C}_{n \times n}$ and $ \textit{D}_{n \times n}.$ Statement $1: tr \text{(AB)} = tr \text{(BA)}$ ... $2$ is correct. Both Statement $1$ and Statement $2$ are correct. Both Statement $1$ and Statement $2$ are wrong.
Arjun
asked
in
Linear Algebra
Feb 15
by
Arjun
1.5k
views
gatecse-2022
linear-algebra
matrix
5
votes
3
answers
12
GATE CSE 2022 | Question: 35
Consider solving the following system of simultaneous equations using $\text{LU}$ decomposition. $x_{1} + x_{2} - 2x_{3} = 4$ $x_{1} + 3x_{2} - x_{3} = 7$ $2x_{1} + x_{2} - 5x_{3} = 7$ where $\textit{L}$ and $\textit{U}$ ... $\textit{L}_{32}= - \frac{1}{2}, \textit{U}_{33}= - \frac{1}{2}, x_{1}= 0$
Arjun
asked
in
Linear Algebra
Feb 15
by
Arjun
1.5k
views
gatecse-2022
linear-algebra
matrix
0
votes
1
answer
13
linear algebra - eigenvalues
What are the eigenvalues of the following matrix?
atulcse
asked
in
Linear Algebra
Jan 13
by
atulcse
192
views
linear-algebra
eigen-value
matrix
engineering-mathematics
1
vote
0
answers
14
Self doubt: what are eigen values of resultant matrix when add two matrices?
if eigen values of matrix A = a,b,c if eigen values of matrix B = x,y,z then is it holds every time that eigen value of A+B = a+x, b+y, c+z ? please give some reference to you answer, thankyou.
jaswanth431
asked
in
Linear Algebra
Dec 12, 2021
by
jaswanth431
119
views
engineering-mathematics
eigen-value
linear-algebra
matrix
2
votes
1
answer
15
Linear Algebra Eigenvalues
If the eigenvalues of a 3x3 matrix A are 1,2 and 3 then inverse of A is?
theakatsuki4
asked
in
Linear Algebra
Sep 16, 2021
by
theakatsuki4
2.4k
views
linear-algebra
engineering-mathematics
eigen-value
matrix
17
votes
6
answers
16
GATE CSE 2021 Set 2 | Question: 24
Suppose that $P$ is a $4 \times 5$ matrix such that every solution of the equation $\text{Px=0}$ is a scalar multiple of $\begin{bmatrix} 2 & 5 & 4 &3 & 1 \end{bmatrix}^T$. The rank of $P$ is __________
Arjun
asked
in
Linear Algebra
Feb 18, 2021
by
Arjun
7.4k
views
gatecse-2021-set2
numerical-answers
linear-algebra
matrix
rank-of-matrix
9
votes
2
answers
17
GATE CSE 2021 Set 1 | Question: 52
Consider the following matrix.$\begin{pmatrix} 0 & 1 & 1 & 1\\ 1& 0& 1 & 1\\ 1& 1 & 0 & 1 \\1 & 1 & 1 & 0 \end{pmatrix}$The largest eigenvalue of the above matrix is __________.
Arjun
asked
in
Linear Algebra
Feb 18, 2021
by
Arjun
5.7k
views
gatecse-2021-set1
linear-algebra
matrix
eigen-value
numerical-answers
2
votes
1
answer
18
CMI-2018-DataScience-A: 1
If $P$ is an invertible matrix and $A=PBP^{-1},$ then which of the following statements are necessarily true? $B=P^{-1}AP$ $|A|=|B|$ $A$ is invertible if and only if $B$ is invertible $B^T=A^T$
soujanyareddy13
asked
in
Others
Jan 29, 2021
by
soujanyareddy13
305
views
cmi2018-datascience
matrix
linear-algebra
0
votes
3
answers
19
CMI-2018-DataScience-A: 2
Let ... $|A|=|B|$ $|C|=|D|$ $|B|=-|C|$ $|A|=-|D|$
soujanyareddy13
asked
in
Others
Jan 29, 2021
by
soujanyareddy13
340
views
cmi2018-datascience
matrix
linear-algebra
2
votes
2
answers
20
CMI-2018-DataScience-A: 3
Let $x=\begin{bmatrix} 3& 1 & 2 \end{bmatrix}$. Which of the following statements are true? $x^Tx$ is a $3\times 3$ matrix $xx^T$ is a $3\times 3$ matrix $xx^T$ is a $1\times 1$ matrix $xx^T=x^Tx$
soujanyareddy13
asked
in
Others
Jan 29, 2021
by
soujanyareddy13
257
views
cmi2018-datascience
matrix
linear-algebra
discrete-mathematics
1
vote
1
answer
21
CMI-2018-DataScience-A: 4
A $n\times n$ matrix $A$ is said to be $symmetric$ if $A^T=A$. Suppose $A$ is an arbitrary $2\times 2$ matrix. Then which of the following matrices are symmetric (here $0$ denotes the $2\times 2$ matrix consisting of zeros): $A^TA$ $\begin{bmatrix} 0&A^T \\ A & 0 \end{bmatrix}$ $AA^T$ $\begin{bmatrix} A & 0 \\ 0 & A^T \end{bmatrix}$
soujanyareddy13
asked
in
Others
Jan 29, 2021
by
soujanyareddy13
304
views
cmi2018-datascience
matrix
linear-algebra
discrete-mathematics
0
votes
2
answers
22
CMI-2018-DataScience-B: 2
For numerical answers, the following forms are acceptable: fractions, decimals, symbolic e.g.:$\left( \begin{array}{c} n \\ r \end{array} \right)^n P_r , n!$ etc. Suppose $A,B$ and $C$ are $m\times m$ matrices. What does the following algorithm compute? (Here $A(i,j)$ ... .) for i=1 to m for j=1 to m for k=1 to m C(i,j)=A(i,k)*B(k,j)+C(i,j) end end end
soujanyareddy13
asked
in
Others
Jan 29, 2021
by
soujanyareddy13
191
views
cmi2018-datascience
matrix
linear-algebra
discrete-mathematics
0
votes
1
answer
23
CMI-2018-DataScience-B: 4
For numerical answers, the following forms are acceptable: fractions, decimals, symbolic e.g.:$\left( \begin{array}{c} n \\ r \end{array} \right)^n P_r , n!$ etc. In computing, a floating point operation (flop) is any one of the following operations ... . How does this number change if both the matrices are upper triangular?
soujanyareddy13
asked
in
Others
Jan 29, 2021
by
soujanyareddy13
182
views
cmi2018-datascience
matrix
linear-algebra
discrete-mathematics
0
votes
1
answer
24
CMI-2018-DataScience-B: 17
$\text{Description for the following question:}$ A golf club has $m$ members with serial numbers $1,2,\dots ,m$. If members with serial numbers $i$ and $j$ are friends, then $A(i,j)=A(j,i)=1,$ otherwise $A(i,j)=A(j,i)=0.$ By ... $1$ and member $2$ have at least one friend in common.
soujanyareddy13
asked
in
Others
Jan 29, 2021
by
soujanyareddy13
121
views
cmi2018-datascience
matrix
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Recent questions tagged matrix
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