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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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Solved


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


Add 100

3 days ago

Solved


Similar triangles

5 days ago

Solved


Highest building

5 days ago

Solved


Digits Multiplication

5 days ago

Solved


Normalizing a vector

5 days ago

Solved


End Digits

5 days ago

Solved


Min-Max digit

5 days ago

Solved


Do you have the minimum age?

6 days ago

Solved


The tallest man in the world

7 days ago

Solved


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

Solved


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

Solved


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

Answered
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

Solved


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

Answered
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

Solved


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

Solved


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

Solved


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

Solved


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

13 days ago

Answered
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

| accepted

Answered
trigonometric non linear equation
I have no idea what this question is about, but I do notice that some of the expressions are surrounded with curly braces { } ra...

13 days ago | 1

| accepted

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