Question

Matrix Inversion acceptable Condition Numbers

score 460 · Answer 1 · 2015-01-16 15:53:05

460

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Matrix Inversion acceptable Condition Numbers

Published on 16 Jan 2015 - 15:53

score 33 · Answer 2 · 2015-01-16 16:23:15

33

Views

inverse of a power series with one specific solution

Published on 16 Jan 2015 - 16:23

score 113 · Answer 3 · 2026-03-31 23:31:24

113

Views

Would there be no input or input does not exist?

Published on 31 Mar 2026 - 23:31

score 696 · Answer 4 · 2015-01-17 15:40:31

696

Views

Invertible "Sigmoid + x" function

Published on 17 Jan 2015 - 15:40

score 2.1k · Answer 5 · 2015-01-17 18:57:12

2.1k

Views

Inverse of a unipotent matrix

Published on 17 Jan 2015 - 18:57

score 417 · Answer 6 · 2026-03-26 13:01:16

417

Views

Given A is a nil-potent matrix (given $ A^k=0 $), prove that A-I is invertible. Is my proof correct?

Published on 26 Mar 2026 - 13:01

score 2.8k · Answer 7 · 2015-01-18 14:53:43

2.8k

Views

Existence of continuous angle function $\theta:S^1\to\mathbb{R}$

Published on 18 Jan 2015 - 14:53

score 349 · Answer 8 · 2026-03-31 23:08:00

349

Views

Invertibility of $X^TX$ when sever multicollinearity in regression

Published on 31 Mar 2026 - 23:08

score 26 · Answer 9 · 2015-01-19 12:05:38

26

Views

inversion of a symmetric matrix after that a column has been changed

Published on 19 Jan 2015 - 12:05

score 183 · Answer 10 · 2015-01-19 14:15:45

183

Views

Relation between $\tan^{-1}(x)$ and $\cot^{-1} (x)$

Published on 19 Jan 2015 - 14:15

score 2.5k · Answer 11 · 2015-01-20 01:24:16

2.5k

Views

Invert a $2\times 2$ Matrix containing trig functions

Published on 20 Jan 2015 - 1:24

score 57 · Answer 12 · 2015-01-20 02:36:25

57

Views

Let $f(x) = \exp (x^2 − x + 6)$. Choose Dom(f) so that $f^{−1}$ exists. What is $f^{−1}$ and Dom($f^{−1}$) in your case?

Published on 20 Jan 2015 - 2:36

score 22 · Answer 13 · 2015-01-20 03:18:39

Suppose that $p(x)=1/4x^4−2/3x^3-5/2x^2+6x-1/12 $withDom(p)=[1,2].Define$q(x)=p^−1(x)$. Show, algebraically, why q(x) exists

score 4.2k · Answer 14 · 2015-01-20 16:42:19

4.2k

Views

Find all matrices where the matrix is its own inverse and the determinant is 1

Published on 20 Jan 2015 - 16:42

score 839 · Answer 15 · 2015-01-22 03:53:13

839

Views

Order of Inverse Operations

Published on 22 Jan 2015 - 3:53

List Question

Matrix Inversion acceptable Condition Numbers

inverse of a power series with one specific solution

Would there be no input or input does not exist?

Invertible "Sigmoid + x" function

Inverse of a unipotent matrix

Given A is a nil-potent matrix (given $ A^k=0 $), prove that A-I is invertible. Is my proof correct?

Existence of continuous angle function $\theta:S^1\to\mathbb{R}$

Invertibility of $X^TX$ when sever multicollinearity in regression

inversion of a symmetric matrix after that a column has been changed

Relation between $\tan^{-1}(x)$ and $\cot^{-1} (x)$

Invert a $2\times 2$ Matrix containing trig functions

Let $f(x) = \exp (x^2 − x + 6)$. Choose Dom(f) so that $f^{−1}$ exists. What is $f^{−1}$ and Dom($f^{−1}$) in your case?

Suppose that $p(x)=1/4x^4−2/3x^3-5/2x^2+6x-1/12 $withDom(p)=[1,2].Define$q(x)=p^−1(x)$. Show, algebraically, why q(x) exists

Find all matrices where the matrix is its own inverse and the determinant is 1

Order of Inverse Operations

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