Community Profile # Ivor Horton

##### Last seen: 2 months ago
8 total contributions since 2020

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Question

How can I get precise result?
I'm new to Matlab and I did some test. format longG a = [1 -1 -1 3; 2 -1 -3 1; 3 2 -5 2; 3 1 2 2] b = adjoint(a) a * b The ...

2 months ago | 1 answer | 0

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Question

How to do matrix equality testing for symbols?
In the documentation I found this example. A = [1+i 3 2 4+i]; B = [1 3+i 2 4+i]; A == B The result is: ans = 1x4 logical ar...

2 months ago | 1 answer | 0

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Question

How to apply latex \bar to multiple characters?
I want to apply \bar to "(A+B)" but it seems not work correctly. How can I do that?

2 months ago | 1 answer | 0

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Question

What does this upperline mean?
I did a simple test. What does the lines above bs mean?

2 months ago | 1 answer | 0

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Question

Are there any built-in way to calculate inversions?
In Mathematica, there is a built-in function Inversions which counts the number of inversions in permutation. See the documen...

2 months ago | 1 answer | 0

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Question

How to use variable?
If I run det([1 2;3 4]) Matlab gives the result -2. I want to calculate det([a b;c d]) and how can I get the result ad - b...

2 months ago | 1 answer | 0