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Big numbers, repeated least significant digits

This problem builds off of <http://www.mathworks.com/matlabcentral/cody/problems/3077-big-numbers-least-significant-digits/ Prob...

12 dagar ago

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Equation Times (of the day)

Many times throughout the day can represent mathematical equations. In this problem, we focus on times that include the four bas...

13 dagar ago

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Arrange the names in alphabetical order (2)

Arrange the list of names in alphabetical order, following the German standard <https://de.wikipedia.org/wiki/Alphabetische_Sort...

13 dagar ago

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Gaussian elimination

Get the Gussian elimination of the Matrix Given You cannot use built-in Matlab functions triu :)

13 dagar ago

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Measure a Special Distance

Given an n-by-2 matrix with positive and negative numbers, return an n-by-n matrix in the manner of the function template.

13 dagar ago

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Spot the rectangle (Part 2)

This problem is related to the <http://bit-player.org/2009/the-17x17-challenge 17x17 challenge>. See also <http://www.mathworks....

15 dagar ago

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Spot the rectangle

This problem is related to the 17x17 challenge. Given a matrix filled with ones and zeros, determine whether or not any rectangl...

15 dagar ago

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Spiral In

Create an m by n matrix filled with sequential integers starting from 1 and arranged in a counterclockwise spiral that hugs the ...

15 dagar ago

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Matrix Rotation

You are given a 2D matrix of dimension [m,n] and a positive integer r. You have to rotate the matrix r times and print the resul...

15 dagar ago

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How to generate random variable theta for F(theta)=N(1 - (mu*B)/(k*T)*cos(theta)). For N=1 and mu*B/k*T=0.01

syms theta fplot(1-0.01*cosd(theta)) xlim([0 180]) ylim([0.99 1.015])

How to generate random variable theta for F(theta)=N(1 - (mu*B)/(k*T)*cos(theta)). For N=1 and mu*B/k*T=0.01

syms theta fplot(1-0.01*cosd(theta)) xlim([0 180]) ylim([0.99 1.015])

17 dagar ago | 1

Answered

finding the orthogonal vectors for a series of vectors

Another method will be - for i=1:size(vec,1) v=vec(i,:); %generate a random vector r=rand(1,3); %check it ...

finding the orthogonal vectors for a series of vectors

Another method will be - for i=1:size(vec,1) v=vec(i,:); %generate a random vector r=rand(1,3); %check it ...

17 dagar ago | 3

Solved

Decipher the message - same key for all digits

You will be given a input number (eg) x='gdkkn' you have to figure out the dechiper key and match it with given input and deci...

17 dagar ago

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Plotting performance vs inlet temp for jet engine and measuring performance as dh as shown. What am I doing wrong?

The for loop indexing is incorrect close all clear all P1 = 101 ;%pressure in kpa T1 = 298;%temperature in kelvin n = 1.4; ...

Plotting performance vs inlet temp for jet engine and measuring performance as dh as shown. What am I doing wrong?

The for loop indexing is incorrect close all clear all P1 = 101 ;%pressure in kpa T1 = 298;%temperature in kelvin n = 1.4; ...

18 dagar ago | 1

Solved

Decimation - Optimized for speed

This problem is similar to http://www.mathworks.com/matlabcentral/cody/problems/1092-decimation, only this time the score will b...

18 dagar ago

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Decimation

When dealing to the Roman Army, the term decimate meant that the entire unit would be broken up into groups of ten soldiers, and...

18 dagar ago

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Josephus Survivor

The <http://en.wikipedia.org/wiki/Josephus_problem Josephus Challenge> is to find the position that is the last remaining when e...

18 dagar ago

Answered

To split class in a cell array

Looks like a simple variable assignment %random data y=num2cell(rand(10,30)) class_1 = y(:,1:15) class_2 = y(:,16:30) %if y...

To split class in a cell array

Looks like a simple variable assignment %random data y=num2cell(rand(10,30)) class_1 = y(:,1:15) class_2 = y(:,16:30) %if y...

19 dagar ago | 1

| accepted

Solved

Permute the unique values of a vector without sorting

Given a vector A, return the matrix B, wherein each row contains a permutation of the unique values in original vector while ret...

19 dagar ago

Answered

Splitting n by 1 matrix

mat2cell approach (gives 1x24 instead of 24x1) A=transpose(1:12552); B=mat2cell(reshape(A,24,[])',ones(1,12552/24)) B{3}'

Splitting n by 1 matrix

mat2cell approach (gives 1x24 instead of 24x1) A=transpose(1:12552); B=mat2cell(reshape(A,24,[])',ones(1,12552/24)) B{3}'

21 dagar ago | 0

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Determine whether one vector is a subset of another

While bumbling through a pair of problems in the Number Theory group, I wrote code to determine whether a vector is a subset of ...

21 dagar ago

Solved

Nuemann Polynomials

Return the coefficients of nth (n>=0) Nuemann polynomial, (a sequence in 1/t) as polynomials in alpha. The expected output is a...

22 dagar ago

Problem

Nuemann Polynomials

Return the coefficients of nth (n>=0) Nuemann polynomial, (a sequence in 1/t) as polynomials in alpha. The expected output is a...

22 dagar ago | 1 | 3 solvers

Solved

Draw a fancy '7' in a zero matrix!

Given a x-by-x matrix filled with zeros (x is odd and > 3). Use 7s to draw a number 7 into it! Like this: x = 5, y = 7 7 7 7 7...

23 dagar ago

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Scorer's Function

Evaluate the Scorer's function for a given input. The expected output is Gi(x). Note - The precision will vary for test cases...

23 dagar ago

Solved

Absolute Value of the Product of Complex Numbers

Find the absolute value (modulus) of the product of two complex numbers given by a + bi and c + di.

23 dagar ago

Problem

Scorer's Function

Evaluate the Scorer's function for a given input. The expected output is Gi(x). Note - The precision will vary for test cases...

23 dagar ago | 2 | 5 solvers

Question

integral() not working properly?

I am trying to integrate a function, however integral() doesn't seem to give the correct value - f=@(t) sin(t.^3./3); y=integ...

24 dagar ago | 1 answer | 0

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Draw 'W'

For any given n, return a matrix of height n and width 4n-3 containing a W of ones. Example: n=2 ans= [1 0 1 0 1 0 1 0 1 0...

24 dagar ago

Answered

long integers in matlab

You can use Java. import java.math.* y=BigInteger('10').pow(100) z=BigInteger('10').pow(100).add(BigInteger('1')) sub=z.su...

long integers in matlab

You can use Java. import java.math.* y=BigInteger('10').pow(100) z=BigInteger('10').pow(100).add(BigInteger('1')) sub=z.su...

24 dagar ago | 0

Answered

Changing elements of row after certain element

For a matrix run a loop through the rows x=[-1,-0.65,-0.45,0,0.3,0.8,1,0.4,0.2,-0.1] %Code edited according to the question x...

Changing elements of row after certain element

For a matrix run a loop through the rows x=[-1,-0.65,-0.45,0,0.3,0.8,1,0.4,0.2,-0.1] %Code edited according to the question x...

25 dagar ago | 1