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# Rohit Pappu

Last seen: 18 days ago Active since 2020

Programming Languages:
C++, Javascript

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Calculate the Number of Sign Changes in a Row Vector (No Element Is Zero)
For a row vector: V=[7 1 2 -3] there is one sign change (from 2 to -3). So, the function you write must return N=1. F...

8 months ago

Solved

Find nth maximum
Find nth maximum in a vector of integer numbers. Return NaN if no such number exists. x = [2 6 4 9 -10 3 1 5 -10]; So ...

8 months ago

Injecting (and combining) a sine wave after a period of time
A plausible solution is as follows Generate the required sinusoidal signal %define sine wave %%Time specifications: Fs = ...

1 year ago | 0

findpeaks accepts only vector data as it's input arguments. A possible workaround would be to use a Buffer block in between Simu...

1 year ago | 0

User Defined Montage but filling 12x8 Array
A possible workaround is as follows % Create an empty cell array of size 12x8 imgList = cell(96); % calculate the cell arra...

1 year ago | 0

Calculate mean distance between lines in an image
For extracting the straight lines, a plausible solution is as follows Find edges in the image using edge function Apply hough ...

1 year ago | 0

How to create 95 and 99 percent confidence ellipses around my data

1 year ago | 0

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Dimensions of a rectangle
The longer side of a rectangle is three times the length of the shorter side. If the length of the diagonal is x, find the width...

1 year ago

Solved

Area of an equilateral triangle
Calculate the area of an equilateral triangle of side x. <<https://i.imgur.com/jlZDHhq.png>> Image courtesy of <http://up...

1 year ago

Solved

Side of a rhombus
If a rhombus has diagonals of length x and x+1, then what is the length of its side, y? <<https://imgur.com/x6hT6mm.png>> ...

1 year ago

Solved

Length of a short side
Calculate the length of the short side, a, of a right-angled triangle with hypotenuse of length c, and other short side of lengt...

1 year ago

Solved

Sum of series VII
What is the sum of the following sequence: Σ(km^k)/(k+m)! for k=1...n for different n and m?

1 year ago

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Sum of series VIII

1 year ago

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Sum of series
a(n) = n^2 - (n-1)^2 find the summation of the series upto n i.e. a(1)+a(2)+...+a(n)

1 year ago

Solved

Sum of series IX

1 year ago

Plot 2D Gaussian spot and histograms of horizontal and vertical axis in one figure
The above diagram can be created using subplot (for creating the grid of plots) and camroll (for rotating the histogram) % Crea...

1 year ago | 1

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Finding circle in image
Please refer to the following answer for some tips on how to improvecircle detection using regionprops https://www.mathworks.co...

1 year ago | 0

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How to convert augmented datastore to image datastore?
For augmening input data in the pixelLabelImageDatastore, the Data Augmentation property of pixelLabelImageDatastore can be set....

1 year ago | 0

Which App in Machine Learning and Deep Learning is best for strongly nonlinear and chaotic data?
For Nonlinear datasets, it is recommended to use fitnlm. An example about predicting using non linear regression can be found he...

1 year ago | 0

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How to solve a transcendental differential equation?

1 year ago | 0

how can we generate a vector of length 100 with random number in between 0 and 1 with uniform probability such that sum of these numbers/100 is equal to 0.75
Please use randfixedsum, available on the File Exchange https://www.mathworks.com/matlabcentral/fileexchange/9700-random-vecto...

1 year ago | 0

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How to create a dataset with an Epsilon Skew Normal distribution?
Currently, there isn't any MATLAB function to generate Epsilon Skew Normal DIstribution, but there is a workaround for it. Plea...

1 year ago | 0

How can we solve this, how to convert mupad to live script?

1 year ago | 0

Solved

Generate pi using logarithm
Generate pi using logarithm

1 year ago

Solved

Given a complex number, output quadrant 'I' 'II' 'III' or 'IV' | II | I | ...

1 year ago

Solved

Area of a circle
Find the value for area of the circle if diameter is given

1 year ago

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Filter AC, pass DC
Input x is the sampled signal vector, may have both AC and DC components. Output vector y should not contain any AC component. ...

1 year ago

Solved

Compute a dot product of two vectors x and y
x and y are input vectors, d is a number and contains their dot product

1 year ago

Solved

Area of an Isoceles Triangle
An isosceles triangle has equal sides of length x and a base of length y. Find the area, A, of the triangle. <<https://imgur...

1 year ago