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# William

##### Last seen: 1 day ago
4,724 total contributions since 2012

Semi-retired physicist with interests in numerical modeling and mathematics.

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Determine if input is even

1 day ago

Solved

Apply Function to Each Field of a Structure Array: Part 1
The builtin <http://www.mathworks.com/help/matlab/ref/structfun.html?=structfun structfun> applies a function handle to each fie...

1 day ago

Solved

3 days ago

Solved

Similar triangles

5 days ago

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Highest building

5 days ago

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Digits Multiplication

5 days ago

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Normalizing a vector

5 days ago

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End Digits

5 days ago

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Min-Max digit

5 days ago

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Do you have the minimum age?

6 days ago

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The tallest man in the world

7 days ago

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Graph Algorithms - 1 : Length of the largest closed path
An undirected simple graph is given as the form of an adjacency matrix. Find the length of the largest closed path (one that sta...

7 days ago

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Rearrange coefficients after block based DCT transform.
Two dimensional block-based discrete cosine transform <http://en.wikipedia.org/wiki/Discrete_cosine_transform#DCT-II (DCT-II)> i...

7 days ago

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Graph Algorithms - 2 : Chromatic Number
Chromatic number of a graph is the minimum number of distinct colors required to color all the vertices of the graph such that n...

10 days ago

How to calculate the conditional probability of an event?
Actually, I believe that p(C|A) would be: y = strfind(array, 'A'); N_A = length(y); p_CA = N_AC/N_A; There is one further th...

11 days ago | 1

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SatCom #6: Inclination of a Sun-Synchronous Orbit
*Satellite and Space Engineering - Problem #5* _This is part of a series of problems looking at topics in satellite and space...

12 days ago

How to calculate the conditional probability of an event?
Myriam, If A, B and C were variables with the values 1, 2 and 3, then in your example: array = [1, 1, 2, 1, 3, 1, 2, 2, 2, 3, ...

12 days ago | 0

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Alternative Scoring. Create an incremental spiral.
This problem is created to test an alternative Cody scoring system. It is based on the current one, but few changes are introduc...

12 days ago

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Fletcher-Reeves Conjugate Gradient Method
Write a function to find the values of a design variable vector, _x_, that minimizes an unconstrained scalar objective function,...

13 days ago

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Quasi-Newton Method for Unconstrained Minimization using BFGS Update
Write a function to find the values of a design variable vector, _x_, that minimizes an unconstrained scalar objective function,...

13 days ago

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Partial pivoting for Gauss Elimination
Write a function to implement partial pivoting for Gauss elimination, given the pivot element.

13 days ago

How to calculate the conditional probability of an event?
Hello Myriam. It is not clear whether A, B, and C here are text characters, or if they have numeric values. If we assume they...

13 days ago | 0

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