Dyuman Joshi

Last seen: Today | Active since 2012

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Mechanical Engineer IITG'20

Programming Languages:
MATLAB
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Convert a number to its Roman representation
Convert a given number to its Roman representation. For example, if the number is 98, it should display 'XCVIII'

environ 3 heures ago

Solved

Encode Roman Numerals
Create a function taking a non-negative integer as its parameter and returning a string containing the Roman Numeral representat...

environ 3 heures ago

Solved

Redefine the Array if the Elements in the Array are Repeating
Check if the Array has any repeating elements, if there are repeating elements then choose "n" as a number of times you want tha...

environ 23 heures ago

Solved

Bernoulli's Equation
Bernoulli's equation states that for an incompressible fluid the following summation is constant across the flow: v^2/2 + g*z + ...

1 jour ago

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Find the gcm of n given values
Create a function that given n integer values greater than zero, finds the two numbers with the greatest common divisor and retu...

3 jours ago

Solved

Construct the Seidel-Entringer-Arnold triangle
Several problems in Cody ask us to construct part or all of triangles in which entries follow a pattern. Cody Problems <https://...

3 jours ago

Answered
Partial Differentiation of a function with exponential is different from other calculators
There's nothing wrong with your answer, it's just simplified version of it. 2 from numerator and denominator is cancelled out an...

4 jours ago | 1

| accepted

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Regex match
Many regular expression engines have a simple function to quickly know whether a regular expression entirely matches a string or...

4 jours ago

Solved

Count the peaceful queens
In a 5x5 chessboard with a queen of one color (white, say) on the perimeter, one can place 12 black queens on the board such tha...

4 jours ago

Solved

Breaking Out of the Matrix
Do you want to take the Red Pill, or the Blue Pill? If you take the Blue Pill, you will simply pass along to the next problem...

4 jours ago

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How close to a hole
Suppose you have a description of good places (ones) and bad places (zeros). You want to know your distance from a bad place (in...

5 jours ago

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Determine whether a number is practical
A number is practical if all smaller numbers can be written as a sum of the proper divisors of . The number 24 is practical bec...

5 jours ago

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Squares in Squares - Concentric Squares
Given a number, n, create an n x n sized matrix with concentric squares of 1s from the outside in. There should be a gap between...

7 jours ago

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Find similar sequences
Another problem inspired by a question on the <http://www.mathworks.com/matlabcentral/answers answers> forum. Given a matrix ...

7 jours ago

Solved

geometric progression
I've modified my <http://uk.mathworks.com/matlabcentral/cody/problems/2800-arithmetic-progression previous program> so that it n...

7 jours ago

Solved

arithmetic progression
I've written a program to generate the first few terms of <https://en.wikipedia.org/wiki/Arithmetic_progression arithmetic progr...

7 jours ago

Solved

Generate the Figure-Figure sequence
After discussing Scott Kim’s FIGURE-FIGURE Figure (below) in Gödel, Escher, Bach, Douglas Hofstadter introduced an integer seque...

8 jours ago

Answered
changing timestamp t and plotting the results.
I am not sure if pause works here on the online/live editor, but it works nicely offline. %building on Torsten's code n=5; dt...

8 jours ago | 0

Answered
Storing a variable and calling it out again to use and plot
How can you plot with different numbers of x values and y values? x =-0.8:0.8:5; T=ones(1,5); T(1,5)=40; numel(x) numel(T) ...

9 jours ago | 0

Answered
adding a variable into a vector
Your deltax is incorrectly defined and due it all subsequent calculations are incorrect as well. %It should be L=0.8; gridpoi...

9 jours ago | 0

Solved

Project Euler: Problem 9, Pythagorean numbers
A Pythagorean triplet is a set of three natural numbers, a b c, for which, a^2 + b^2 = c^2 For example, 3^2 + 4^2 =...

9 jours ago

Answered
where is the error in my code?
syms doesn't go with function handles. fplot is purely for symbolic function, not function handles. V1 = @(w) -acosh(10*(w./(2...

12 jours ago | 0

Answered
How to return values mapped to a variable?
Not sure what you want exaclty a = [1 2 3 4 5 6 7 8 9 10]; b = [4 5 12 45 21 52 69 10 22 0]; a_temp = isprime(a) b_temp = b(...

12 jours ago | 0

Solved

perfect square
Perfect square is amazing, so we have problems like 45183, 34482, 44683, and 44957. But how can we find a large number is a pe...

12 jours ago

Answered
Reverse order of X axis
Building on @Image Analyst's comment, reversing the x-tick labels Exp = 0:15; % Days to expiration P = linspace(10, 30, leng...

13 jours ago | 0

| accepted

Answered
How to get a data set using Mean and standard deviation
mu=63; sigma=2.3; %generate normally distributed numbers y=randn(1,10); y=sigma*(y-mean(y))/std(y)+mu mean(y) std(y)

15 jours ago | 0

| accepted

Answered
I want to obtain value of "W" for different combination of values of (psi,r) example. "W" for (psi=0.0001,r = 2.1891) ; (psi=0.001,r = 2.1940); (psi=0.01,r = 2.2373) and so on
%loop psi=[0.0001,0.001,0.01]; r=[2.1891,2.194,2.2373]; for i=1:numel(psi) W(i)=calculateW(psi(i),r(i)); end W %array...

15 jours ago | 0

| accepted

Solved

Image Processing 2.1.1 Planck Integral
Integrate the Planck function in Lambda (um) at T (K) accurately and quickly to find Radiance for a Lambertian source. Planck...

15 jours ago

Answered
find node with maximum degree
Your "label" seems incorrect. node=[1 2 3 4 5 6 7 8 9 10 11 12 13 14 15]; degree=[11 11 12 10 15 10 8 14 12 1 8 6 2 18 5]; de...

15 jours ago | 0

Solved

Choose group with people
How many ways can you choose n groups of n people from n^2 people, assuming the groups are distinct? The number of people is gi...

17 jours ago

Dyuman Joshi

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