Solved

Sudoku square
We have a small sudoku square, but we miss one number. x=[ 1 5 4; 8 6 3; 0 9 7]; Make a function, where output is fi...

10 years ago

Solved

Get factory-defined property values
Given a property name (e.g. 'AxesUnits', 'LineMarkerSize', 'UicontrolBackgroundColor'), return the factory-defined value for tha...

10 years ago

Solved

How many figures currently exist?
Return the number of figures that exist at any given time.

10 years ago

Solved

Simple polynomial evaluation
Compute the value of a polynomial of degree n with all coefficients '1', at value x. n is always n>=0. p(x)=1+x+x^2+...+x^n...

10 years ago

Solved

Beat the test suite if you can :)
Test Suites are laid there for clues

10 years ago

Solved

Accessing values in a cell
You are given c, which is a 1xN cell array, and a and b, which are each two 1xM vectors. Your job is to give the bth value in t...

10 years ago

Solved

What's size of TV?
Many people buy TV. Usually they ask about diagonal. But also important are width and height. Let's assume that all TV have rati...

10 years ago

Solved

Odd row
Create a row 'y' with odd numbers where the range of numbers is given by 'x' and the space between them by 'm'. The first number...

10 years ago

Answered
i have a column matrix [23; 34;22;13]. i need to create set of column matrixs ,which give 1 and -1 in numbers if the next number is less than and larger than.
I have modified the last answer after getting your comment. A = [23; 34; 22; 13]; B = sign(diff(A)); matrixs = {0}; ...

10 years ago | 1

Solved

Sum of digits of powers of 2
Given n, first, calculate the number 2^n. Then, sum the digits that comprise that number. For example: Input: n = 7 2^n = ...

10 years ago

Solved

Subtract two positive numbers
Given a and b as a string, return b-a without using string to number conversion functions. a and b must to be a same size and b ...

10 years ago

Solved

Simple date to serial no. conversion
Convert a date string to a serial date number. For example if you take x='19-May-2001' then the result is 730990 x...

10 years ago

Solved

High school cafeteria
Given an input vector of positive integers, return a row vector with the primes first (in increasing order) and the composites n...

10 years ago

Solved

Negative matrix
Change the sign of all elements in given matrix.

10 years ago

Solved

Find unique number in input
Find value that occurs in odd number of input elements.

10 years ago

Solved

Pad zero between every adjacent values of the vector.
you are given a vector x. you have to make an output vector y with zeros padded between every adjacent values of x. e.g x: ...

10 years ago

Solved

Repeat the entries of the vector to their reference times in the vector.
e.g for input x: [ 7 3 9 5] output y: [ 7 3 3 9 9 9 5 5 5 5]

10 years ago

Solved

give nth decimal place of pi
max 15th place after the decimal point is ok for now

10 years ago

Solved

radius of a spherical planet
you just measured its surface area, that is the input.

10 years ago

Solved

Count photos
Given n people, everyone must have pictures taken with everyone, each photo includes only two persons, please count the total nu...

10 years ago

Solved

Multiply a column by a row
* Given a column vector C and and a row vector R. * Output a matrix M. * Every column of M equals to C multiplied by correspon...

10 years ago

Solved

Tell me the slope
Tell me the slope, given a vector with horizontal run first and vertical rise next. Example input: x = [10 2];

10 years ago

Solved

Set the array elements whose value is 13 to 0
Input A either an array or a vector (which can be empty) Output B will be the same size as A . All elements of A equal to 13...

10 years ago

Solved

Reverse the elements of an array
Reverse the order of elements in an array: eg: input X = [ 1 2 3 ; 4 5 6 ; 7 8 9 ] o...

10 years ago

Solved

sum of non-primes
The sum of the non-primes below 10 is 1+4+6+8+9+10=38 Find the sum of all the non-primes below the input, N.

10 years ago

Solved

Triangle Numbers Below N
This is an offshoot of <http://www.mathworks.com/matlabcentral/cody/problems/5-triangle-numbers Cody Problem 5: Triangle Numbers...

10 years ago

Solved

find the maximum element of the matrix
for e.g x = [1 2; 3 4] y = 4

10 years ago

Solved

What percentage?
Calculate the output c as the percentage of a on b for given a and b.

10 years ago

Solved

Find the index of the largest value in any vector X=[4,3,4,5,9,12,0,4.....5]
The given function returns the index of the maximum value in a given matrix. such as X=[4,3,4,5,9,12,0,5] Ans= 6 if maxim...

10 years ago

Solved

Remove the two elements next to NaN value
The aim is to *remove the two elements next to NaN values* inside a vector. For example: x = [6 10 5 8 9 NaN 23 9 7 3 21 ...

10 years ago