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Put two time series onto the same time basis
Use interpolation to align two time series onto the same time vector. This is a problem that comes up in <http://www.mathwork...

plus de 2 ans ago

Solved


Longest run of consecutive numbers
Given a vector a, find the number(s) that is/are repeated consecutively most often. For example, if you have a = [1 2 2 2 1 ...

plus de 2 ans ago

Solved


ZigZag matrix with reflected format
ZigZag MATRIX with REFLECTED format. We have only input x. We have to create a matrix in the following pattern. input n=5...

plus de 2 ans ago

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Calendar Matrix
Return a calendar matrix for the given values of month and year. Assume that Sunday is the first day of the week. The resulting ...

presque 3 ans ago

Solved


Back to basics 20 - singleton dimensions
Covering some basic topics I haven't seen elsewhere on Cody. Remove the singleton dimensions from the input variable (e.g. if...

plus de 4 ans ago

Solved


Sorting
Assume that x is an n-by-2 matrix. The aim is to return the first column of x, but sorted according to the second column. Exa...

plus de 4 ans ago

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Matrix Construction I
Given n, construct a matrix as shown in the example below. Example For n=8, the output should look like this: 1 2 3 4 ...

plus de 4 ans ago

Solved


How to calculate log?
There is a log that have base 5. How to calculate? log5(x)?

plus de 4 ans ago

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Find remainder when x is divided by 3
Find remainder when x is divided by 3

plus de 4 ans ago

Solved


Test if a number is numeric or not
Test if a number is numeric or not

plus de 4 ans ago

Solved


Rotate array 90 degrees
Rotate the given matrix by 90 degrees. Example, A = [1 2 3 ; 4 5 6 ] B = rotated(A) = [ 3 6; 2 5; 1 4 ]

plus de 4 ans ago

Solved


Change matrix to vector
Vector is a matrix whose size is 1 x n or n x 1. Change matrix to vector. x = 4 3 5 1 ...

plus de 4 ans ago

Solved


Create a matrix with difference of each row of input matrix
With a given input matrix A, create a output matrix B in such a way that each row in B is a difference of rows of input matrix A...

plus de 4 ans ago

Solved


Percentage profit:3
x% product is sold at r1% profit. However, our target overall profit is rt%. What is the required percentage profit to meet the ...

plus de 4 ans ago

Solved


Set x value to each odd index of vector y.
Set x value to each odd index of vector y.

presque 5 ans ago

Solved


0, 2, 0, -2, 0, 2, 0, -2, ...
Generate the first n terms of a periodic sequence defined as f(x) = 0, 2, 0, -2, 0, 2, 0, -2, ..., for x = 1, 2, 3, 4, 5, 6...

presque 5 ans ago

Solved


expand intervals vol.2
Similar to problem <http://www.mathworks.co.uk/matlabcentral/cody/problems/2528 2528>. This is a more general case, when bounds ...

presque 5 ans ago

Solved


Convert a numerical matrix into a cell array of strings
Given a numerical matrix, output a *cell array of string*. For example: if input = 1:3 output is {'1','2','3'} whic...

presque 5 ans ago

Solved


Find Missing Number
A little problem (inspired by CodeChef) for the coffee break. A friend give you an array of size n-1 integers and these int...

presque 5 ans ago

Solved


Odd elimination
Inspired by Project Euler problem #539 You'll be given a vector from 1 to n; Going from left to right, remove the first n...

presque 5 ans ago

Solved


count any radix?
given radix r(2-9), digts d(1-4), give all possible strings in sorted order. for example, if r=2, d=2, then output {'00' '01' '1...

presque 5 ans ago

Solved


DC-DC boost converter
Find the output voltage of a DC-DC boost converter when its input voltage is 12V and the duty cycle ratio is 0.6.

presque 5 ans ago

Solved


Increment up an input vector
Increment up an input vector by adding the indices to the vector values. For example, if an input vector is [3, 2, 6, 1, 6], the...

presque 5 ans ago

Solved


Calculate the logarithm of number
Calculate the logarithm of number x

presque 5 ans ago

Solved


Create a code for XNOR
Given two inputs, output XNOR of those two

presque 5 ans ago

Solved


Solve the system of linear equations
4x - 2y +6z=8 2x + 8y +2z=4 6x + 10y +3z=0 Input is each coefficient of polynomial. For example, a=[4 ...

presque 5 ans ago

Solved


Number of primes
Count the number of primes less than 'n'.

presque 5 ans ago

Solved


Slope of the line passing through two points
Determine the slope of a line passing through the points a=[x1 y1] and b=[x2 y2].

presque 5 ans ago

Solved


multiply 2 by 2
multiply 2 by 2

presque 5 ans ago

Solved


sum as columns
sum as columns.

environ 5 ans ago

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