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Abdolkarim Mohammadi-Balani


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92 total contributions since 2019

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Answered
How do I shift columns (left or right) in a matrix
I used the vectorization capability of MATLAB, so it is faster and there is no need for a for loop. data = rand (5,16); chann...

2 hours ago | 0

Answered
Where can i find the power calculation block in simulink?
Go to library browser. Then open Simulink > Quick insert > Math operations. You can find the Power block here. Or Instead of ...

1 day ago | 0

Answered
How can I fit 3-D scatter points with value?
If your model for the relationship between (theta, r, z) triplets and the pressure is linear, use regress. Otherwise, use lsqcur...

1 day ago | 0

Answered
bar graph with variation in x axis
Use the following code. You replace your data with DataY. figure ('Position', [293,243,900,420]); DataX = (20:30:620)'; ...

3 days ago | 0

Answered
How to plot sine waves in x and y-axes simultaneously?
You should first create the horizontal sine and then rotate it for pi/2 using rotation matrix to get the vertical sine. You can ...

4 days ago | 0

| accepted

Answered
genetic algorithm to optimize the variable of linear regression(a,b1,b2)
First of all, you should use regress for multiple linear regression. However, if you want to know whether it is possible to use ...

19 days ago | 0

Question


Why Global Optimization toolbox is codenamed "gads"?
MATLAB toolboxes have straightforward codenames. For example, stats for Statistics and Machine Learning toolbox, optim for Optim...

19 days ago | 1 answer | 1

1

answer

Answered
MATLAB/NOMAD for global optima?
Your problem is a bound-constrained problem with five decision variables. I think many solvers in the Global Optimization toolbo...

19 days ago | 0

Answered
Product of three 1d vectors and a 3d array
aPermuted = a(:); bPermuted = permute (b(:),[2,1,3]); cPermuted = permute (c(:),[3,2,1]); Z = T .* aPermuted .* bPermuted ....

22 days ago | 0

| accepted

Answered
How to group boxplots on matlab
boxchart is introduced in 2020a and is much more flexible than boxplot and has an option for plot grouping. boxchart documenta...

22 days ago | 0

Answered
Time based output at simulink
You can simply connect it to the next block :)

22 days ago | 0

Answered
Plot area with equation
r = 50; NumPoints = 500; [UnitX,UnitY,UnitZ] = sphere (NumPoints); RealX = r * UnitX; RealY = r * UnitY; RealZ = r * Un...

22 days ago | 0

| accepted

Answered
Time based output at simulink
You can use "Display" block to view the last value or "To Workspace" block and set it to return the last value to the base works...

22 days ago | 0

Solved


Create times-tables
At one time or another, we all had to memorize boring times tables. 5 times 5 is 25. 5 times 6 is 30. 12 times 12 is way more th...

2 months ago

Solved


Fibonacci sequence
Calculate the nth Fibonacci number. Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ... Examples: Inpu...

2 months 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...

2 months 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 months 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 months 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 months 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 months 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 months ago

Solved


Make roundn function
Make roundn function using round. x=0.55555 y=function(x,1) y=1 y=function(x,2) y=0.6 y=function(x,3) ...

2 months ago

Solved


Rounding off numbers to n decimals
Inspired by a mistake in one of the problems I created, I created this problem where you have to round off a floating point numb...

2 months ago

Solved


Matlab Basics - Rounding III
Write a script to round a large number to the nearest 10,000 e.g. x = 12,358,466,243 --> y = 12,358,470,000

2 months ago

Solved


Matlab Basics - Rounding II
Write a script to round a variable x to 3 decimal places: e.g. x = 2.3456 --> y = 2.346

2 months ago

Solved


Check that number is whole number
Check that number is whole number Say x=15, then answer is 1. x=15.2 , then answer is 0. <http://en.wikipedia.org/wiki/Whole...

2 months ago

Solved


MATLAB Basic: rounding IV
Do rounding towards plus infinity. Example: -8.8, answer -8 +8.1 answer 9 +8.50 answer 9

2 months ago

Solved


MATLAB Basic: rounding III
Do rounding towards minus infinity. Example: -8.8, answer -9 +8.1 answer 8 +8.50 answer 8

2 months ago

Solved


MATLAB Basic: rounding II
Do rounding nearest integer. Example: -8.8, answer -9 +8.1 answer 8 +8.50 answer 9

2 months ago

Solved


MATLAB Basic: rounding
Do rounding near to zero Example: -8.8, answer -8 +8.1 answer 8

2 months ago

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