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Ahmed Mahfouz


University of Luxembourg

Last seen: 2 månader ago Active since 2017

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Programming Languages:
Python, C, MATLAB

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Answered
Evaluate Simulink model at a given time vector
Hello Daniele, I was having the exact same issue, and the following method worked for me, so you might as well wanna try it. s...

8 månader ago | 0

Submitted


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

mer än ett år ago | 2 downloads |

0.0 / 5
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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 ...

ungefär 2 år ago | 0

Submitted


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

mer än 2 år ago | 1 download |

0.0 / 5

Submitted


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

mer än 2 år ago | 2 downloads |

0.0 / 5
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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 ...

nästan 4 år 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.

mer än 4 år ago | 1 download |

5.0 / 5
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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...

ungefär 5 år 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...

ungefär 6 år ago | 0 answers | 0

0

answers

Submitted


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

mer än 6 år ago | 1 download |

5.0 / 5
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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.

ungefär 7 år ago | 1 download |

0.0 / 5
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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...

ungefär 7 år 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...

ungefär 7 år 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...

ungefär 7 år ago

Solved


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

ungefär 7 år 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...

nästan 8 år 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...

nästan 8 år 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...

nästan 8 år 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...

nästan 8 år 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...

nästan 8 år 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 ...

nästan 8 år 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...

nästan 8 år 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 ...

nästan 8 år 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...

nästan 8 år ago

Solved


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

nästan 8 år ago

Solved


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

nästan 8 år 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 ...

nästan 8 år 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...

nästan 8 år 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:...

nästan 8 år 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...

nästan 8 år ago | 0

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