Ahmed Mahfouz

University of Luxembourg

Last seen: 3 months ago | Active since 2017

Followers: 1 Following: 0

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Programming Languages:
Python, C, MATLAB

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Submitted

Extended-Kalman-Filter---Matlab
Easy implementation of the extended Kalman Filter

5 months ago | 4 downloads |

Answered
Problem with Cholesky's decomposition of a positive semi-definite matrix
Hello Jamie, You probably got your answer already or even moved on from this question, but I will leave this answer here for ...

1 year ago | 0

Submitted

Matrix to Latex
Generate the latex code for any numerical 2D matrix

1 year ago | 2 downloads |

Submitted

Two vectors to DCM
Get the DCM between two reference frames if two arbitrary vectors in both frames need to be aligned

1 year ago | 1 download |

Solved

Flip the vector from right to left
Flip the vector from right to left. Examples x=[1:5], then y=[5 4 3 2 1] x=[1 4 6], then y=[6 4 1]; Request not ...

3 years ago

Submitted

Plot uniform wing surface using airfoil points
Produce a 3D surface plot of a uniform wing using the X and Y data of an airfoil.

3 years ago | 2 downloads |

Answered
Inpolygon - wrong classification for points lcoated on boundary
Hello Timo, I have encountered this problem today, and it seems a problem that a lot of people face. My solution was to simply...

4 years ago | 0

Question

Is there an algorithm to calculate the settling time of a time series?
I am performing a simulation of a system that involves a lot of random variables. The response of this system varies each time I...

5 years ago | 0 answers | 0

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answers

Submitted

Concatenate multiple plots next to each other
Concatenate multiple plots from left to right with fixed y limits

5 years ago | 2 downloads |

Submitted

Higher derivatives of a vector wrt another vector
The function differentiates a given vector with respect to another vector for any given number of times.

6 years ago | 3 downloads |

Solved

Weighted average
Given two lists of numbers, determine the weighted average. Example [1 2 3] and [10 15 20] should result in 33.333...

6 years ago

Solved

Determine whether a vector is monotonically increasing
Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

6 years ago

Solved

Swap the first and last columns
Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

6 years ago

Solved

Is my wife right?
Regardless of input, output the string 'yes'.

6 years ago

Solved

Make a checkerboard matrix
Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Examp...

6 years ago

Solved

Find the numeric mean of the prime numbers in a matrix.
There will always be at least one prime in the matrix. Example: Input in = [ 8 3 5 9 ] Output out is 4...

6 years ago

Solved

Remove any row in which a NaN appears
Given the matrix A, return B in which all the rows that have one or more <http://www.mathworks.com/help/techdoc/ref/nan.html NaN...

6 years ago

Solved

Finding Perfect Squares
Given a vector of numbers, return true if one of the numbers is a square of one of the other numbers. Otherwise return false. E...

6 years ago

Solved

Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

7 years ago

Solved

Find all elements less than 0 or greater than 10 and replace them with NaN
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

7 years ago

Solved

Triangle Numbers
Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...

7 years ago

Solved

Column Removal
Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; and ...

7 years ago

Solved

Select every other element of a vector
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

7 years ago

Solved

Determine if input is odd
Given the input n, return true if n is odd or false if n is even.

7 years ago

Solved

Add two numbers
Given a and b, return the sum a+b in c.

7 years ago

Solved

Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

7 years ago

Solved

Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

7 years ago

Solved

Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

7 years ago

Answered
to convert a row into 3d matrix having all combinations
i don't know what you exactly mean but i assumed the entries to the 3d matrix are the same as in the given vector, you can try t...

7 years ago | 0

Submitted

Phase plane plotter
phase plane plotting for a second order nonlinear system

7 years ago | 69 downloads |

Ahmed Mahfouz

University of Luxembourg

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