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Go back n times
You will be given a column vector (such as x = [1; 2; 3; 4; 5; 6]). If (n=3) you will return following; [ 1 NaN NaN NaN ...

4 years ago

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Check if integer
Given a vector of elements, determine if each element is an integer and return true or false accordingly.

4 years ago

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Matrix to 3-Column Matrix
Consider a matrix *A* such as A = [1 2 3 3 4 5 6; 2 3 4 5 6 7 8]; Can you convert this matrix to a three-column ...

4 years ago

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the number of inputs
Find the number of the inputs of the function. example y = theinputnumber(x,k); function called theinputnumber has 2 in...

4 years ago

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Place numbers
Given two input first input is a matrix which consist of the index numbers of the second input vector. You place the second inpu...

4 years ago

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Convert Cylindrical Cooridinates into Spherical Coordinate
For Cylindrical coordinate point, rho, fie (degrees) and z. Convert these points in Spherical Cooridinate System and save result...

4 years ago

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Where is she?
Given the numbers 12, 3, 6, 9 Tell where the girl is located. That is: Look to your 3 o'clock = look right Example ...

4 years ago

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Remove and Sort
Given a randomized array n, sort it and remove all odd integers. n=5 y = [2 4]

4 years ago

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Is It a Palindrome?
Given a string or array, determine if it is a palindrome.

4 years ago

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solve for y that is half as much as three less than one tenth of x
function y = half(x) y = (x * .1); end

4 years ago

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sum of binomial series

4 years ago

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Squares of odd numbers upto a given range
Find the squares of odd numbers upto a given range. If Given x=6 return y=(1^2,3^2,5^2) y=1,9,25 If Given x=5 retu...

4 years ago

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prime to each other
Given two integers n1, n2 greater than 1, find out if they have common divisors or are prime to each other. Return "true" if the...

4 years ago

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Number of occurrences of letter in a text
Given an input text either as a string or as a cell array of strings, return a (1 x 26) matrix containing the number of occurren...

4 years ago

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multiple of nine?
Given a positive number n, return true if n is a multiple of 9 and false if not. Do not make the division and do not use functio...

4 years ago

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Count of Unique Elements of a Vector
Count the number of times each unique element appears in a vector. Example: Input x = [2 9 1 2 4 9 2] Output y = [1 1; 2 3; 4...

4 years ago

Solved

Monte Carlo integration: area of a polygon
The area of a polygon (or any plane shape) can be evaluated by <https://www.mathworks.com/matlabcentral/cody/problems/179 Monte ...

4 years ago

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Curve fitting (linear functions) & function handles
In this problem you are provided some raw data. You need to find a way of summarising the data with just a few parameters, so t...

4 years ago

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First use of arrayfun() and anonymous function @(x)
Create an anonymous function using @(x) for a parabola equation for the given coefficients stored in s with s(1)x2 + s(2)x + s(...

4 years ago

Solved

Pass the Threshold!!
Write a Matlab function that will take as input a matrix of arbitrary dimensions and a scalar threshold value, and return a vec...

4 years ago

Answered
min/max finding
a=randi(10000,24,60); Min=min(a,[],2); Max=max(a,[],2);

4 years ago | 0

Answered
matlab coding - finding shortest path problem
e=[]; %generate adjacency matrix K=1:100; a=11:10:81;b=20:10:90;c=2:9;d=92:99; e=[e;[a',a'+1];[a',a'+10];[a',a'-10];[a',a'-9...

4 years ago | 1

| accepted

Solved

N-th Digit of all Write-Down Numbers
Write-Down Numbers are: 123456789101112131415161718192021222324252627282930... What is the N'th digit (where N is represented a...

4 years ago

Problem

N-th Digit of all Write-Down Numbers
Write-Down Numbers are: 123456789101112131415161718192021222324252627282930... What is the N'th digit (where N is represented a...

4 years ago | 1 | 6 solvers

Solved

n-th digit of write-down all numbers
Write down number as 123456789101112131415161718192021222324252627282930... what's the n-th digit? input n and get the digit.

4 years ago

Answered
How to take every third number from every line from matrix textfile 100x72
m=readmatrix('yourMatrix.file');

4 years ago | 1

Answered
How to create a function that checks if a word is a palindrome?
x='racecar'; isequal(x,flip(x));

4 years ago | 0

| accepted

Answered
How do I I get the first 15 solution of the equation
Plot first, then use fzero to find exact zeros. a=1;b=2; eqn=@(x)besselj(0,x*a).*bessely(0,x*b)-bessely(0,x*a).*besselj(0,x*b)...

4 years ago | 0

Answered
How to select same numbers with tolerance?
X = [ 2.5,3.65,0,0.25,0.35,0.035,0.00025,1,4.65,5.85] newMatrix=X(X<1);

4 years ago | 0

Answered
Help with an exercise
x=0:.01:2*pi; sigma=0.25; s=sigma*randn(1,length(x)); y=sin(x); plot(x,y,x,y+s);

4 years ago | 1