# Ahmed raafat

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Hello my name is Ahmed Raafat from Egypt I Love MatLab , and I hate Python because the only importance of python is the ability to connect to websites , other wise it can't speak math please see my projects , for contact me please send to my email eng.abo.lregal@gmail.com

**Programming Languages:**

MATLAB

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RANK**2,963** of 19,825

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CONTRIBUTIONS**21** Files

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Solved

Generate a vector like 1,2,2,3,3,3,4,4,4,4

Generate a vector like 1,2,2,3,3,3,4,4,4,4 So if n = 3, then return [1 2 2 3 3 3] And if n = 5, then return [1 2 2 3 3 3 4...

2 months ago

Submitted

Breast_Cancer

This Code is about Image improvement of breast to show the cancer's cells

5 months ago | 7 downloads |

image encryption based on hyper-chaotic system and cat map

Wow you have changed my code, try this code for arnold https://www.mathworks.com/matlabcentral/fileexchange/135974-arnold_cat_ma...

8 months ago | 0

Submitted

Arnold_Cat_Map

Example of Arnold cat map encryption/decryption

9 months ago | 3 downloads |

Submitted

ElectricalMotorSpeedTechniques

Cost FUnction FOr optimizing Motor's speed , it has 3 examples : single speed , multispeed and fuzzy

12 months ago | 3 downloads |

Submitted

Directional_correlation

horizontal , vertical and Diagonal Correlation

1 year ago | 1 download |

Question

what is the url of server instance?

I have installed MatLab App Server I have built the dash port using mps-dashboard also I have created instance with port 9...

1 year ago | 1 answer | 0

### 1

answerQuestion

how to convert matlab results to Document Model automatically

Hi assuming I have a user interface for company created by MatLab now I want the results of the calculations to be put in spe...

1 year ago | 0 answers | 0

### 0

answersQuestion

Custom RL enviroment based on objective function

Hello I have my optimization Objective function , I want to convert it into Reinforcement Learning enviroment , How can I do t...

2 years ago | 0 answers | 0

### 0

answersfree simulink output without (out) object

https://mycourses.aalto.fi/pluginfile.php/1137968/mod_resource/content/5/Simulink%20settings.pdf that link from @David Avila re...

2 years ago | 0

| accepted

Question

free simulink output without (out) object

Hello I remember in the old versions , when I want to output from simulink to workspace I just rename my variable using to work...

2 years ago | 1 answer | 0

### 1

answerQuestion

caught exception in slsvXtesterFEVALWithDeferredCtrlCHandling

Hello I have faced this problem recently , I always delete the SSL Library Linkeage Cache as shown in this link , and also I d...

2 years ago | 0 answers | 0

### 0

answersconvert XML to simulink model

I have just found the solution rename ('The_file.zip') to ('The_file.slx')

2 years ago | 0

| accepted

Question

convert XML to simulink model

Hello every one , I have recieved files from friend that is *.xml , he wants to convert it back to simulink model is there any ...

2 years ago | 1 answer | 0

### 1

answerSolved

Longest run of consecutive numbers

Given a vector a, find the number(s) that is/are repeated consecutively most often. For example, if you have a = [1 2 2 2 1 ...

2 years ago

Solved

Rescale Scores

Each column (except last) of matrix |X| contains students' scores in a course assignment or a test. The last column has a weight...

2 years ago

Solved

Calculate Inner Product

Given two input matrices, |x| and |y|, check if their inner dimensions match. * If they match, create an output variable |z|...

2 years ago

Solved

Find MPG of Lightest Cars

The file |cars.mat| contains a table named |cars| with variables |Model|, |MPG|, |Horsepower|, |Weight|, and |Acceleration| for ...

2 years ago

Solved

Find the Best Hotels

Given three input variables: * |hotels| - a list of hotel names * |ratings| - their ratings in a city * |cutoff| - the rat...

2 years ago

Solved

Crop an Image

A grayscale image is represented as a matrix in MATLAB. Each matrix element represents a pixel in the image. An element value re...

2 years ago

Solved

Calculate BMI

Given a matrix |hw| (height and weight) with two columns, calculate BMI using these formulas: * 1 kilogram = 2.2 pounds * 1 ...

2 years ago

Solved

Plot Damped Sinusoid

Given two vectors |t| and |y|, make a plot containing a blue ( |b| ) dashed ( |--| ) line of |y| versus |t|. Mark the minimum...

2 years ago

Solved

Calculate a Damped Sinusoid

The equation of a damped sinusoid can be written as |y = A.ⅇ^(-λt)*cos(2πft)| where |A|, |λ|, and |f| ...

2 years ago

Solved

Solve a System of Linear Equations

Example: If a system of linear equations in x₁ and x₂ is: 2x₁ + x₂ = 2 x₁ - 4 x₂ = 3 Then the coefficient matrix (A) is: 2 ...

2 years ago

Solved

Verify Law of Large Numbers

If a large number of fair N-sided dice are rolled, the average of the simulated rolls is likely to be close to the mean of 1,2,....

2 years ago

Solved

Find the Oldest Person in a Room

Given two input vectors: * |name| - user last names * |age| - corresponding age of the person Return the name of the ol...

2 years ago

Solved

Convert from Fahrenheit to Celsius

Given an input vector |F| containing temperature values in Fahrenheit, return an output vector |C| that contains the values in C...

2 years ago

Solved

Calculate Amount of Cake Frosting

Given two input variables |r| and |h|, which stand for the radius and height of a cake, calculate the surface area of the cake y...

2 years ago