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Phonebook-like problem
strcmpi('Yes', 'No')

10年以上前

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"Low : High - Low : High - Turn around " -- Create a subindices vector
Let two vectors *lo* and *hi* be given. The job is to create a index vector like so idx = [lo(1):hi(1) lo(2):hi(2) ...]...

10年以上前

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Make a Star Pyramid
Create a star pyramid. First line will have 1 star, second will have two stars and so on... a basic program which is easily done...

10年以上前

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root?
* Given a function 'foo', and a position 'there', find the root near 'there'. * For example: If foo=@sin, and there=3.1, then r...

10年以上前

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Permute diagonal and antidiagonal
Permute diagonal and antidiagonal For example [1 2 3;4 5 6;7 8 9] -> [3 2 1;4 5 6;9 8 7] WITHOUT diag function (and variable n...

10年以上前

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Rosenbrock's Banana Function and its derivatives
Write a function to return the value of <http://en.wikipedia.org/wiki/Rosenbrock_function Rosenbrock's two-dimensional banana fu...

10年以上前

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Detect a number and replace with two NaN's
Write code which replaces the number 1 with two NaNs. Example X = [ 1 2 NaN 4 1 3 7 NaN 1 4 NaN 2] ...

10年以上前

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Nearest
*Description* Find the value and index of the element in vector _x_ that is nearest to value _y_. _y_ should be able to be a ...

10年以上前

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Counting Sequence
Given a vector x, find the "counting sequence" y. A counting sequence is formed by "counting" the entries in a given sequence...

10年以上前

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Remove all the consonants
Remove all the consonants in the given phrase. Example: Input s1 = 'Jack and Jill went up the hill'; Output s2 is 'a ...

10年以上前

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Max index of 3D array
Given a three dimensional array M(m,n,p) write a code that finds the three coordinates x,y,z of the Maximum value. Example ...

10年以上前

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Matrix with different incremental runs
Given a vector of positive integers a = [ 3 2 4 ]; create the matrix where the *i* th column contains the vector *1:a(i)...

10年以上前

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Get the area codes from a list of phone numbers
Given a string of text with phone numbers in it, return a unique'd cell array of strings that are the area codes. s = '508-647...

10年以上前

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Find 1's Complement
Find 1's complement of a binary number For Example: x = 10011010 1's complement of x = 01100101

10年以上前

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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...

10年以上前

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Sum of Matrix
Sum of Matrix

10年以上前

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Step up
For given input array, output a array with all elements step up by two

10年以上前

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Print the date for a given number using Indian calendar reference
Print date for a given number in date reference is INDIAN calendar, not Christ's Birth The Vikram Samvat is said to have been...

10年以上前

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Sum my indices
Given inputs M and N (in that order), output an MxN matrix whose entries are equal to the sum of their indices. Example input...

10年以上前

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Is It a Snake?
Given an m-by-n matrix, return true if the elements of the matrix are a connected "snake" shape from 1 to m*n. Otherwise return ...

10年以上前

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Why the heck are they blinking!?!?
Merry Christmas everyone! Sadly, the lights you've had on your tree for so many years burned out, and it's time to get a new se...

10年以上前

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FInd an Area of a Polygon
Consider 2-D geometry and assume that the points are given in form of rows of a matrix. Find an area of polygon enclosed by the ...

10年以上前

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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...

10年以上前

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Sum of elements of array
Sum of elements of array

10年以上前

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Find elements of set A those are not in set B
Given two sets of data A and B. Find elements of A those are not in set B. ...

10年以上前

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Replace secondary diagonal elements of a square array
Replace all the secondary diagonal elements of the square array A with the number n Example: A = [1 2 3 4 5 6 ...

10年以上前

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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...

10年以上前

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Fill a zeros matrix
The aim is to fill an array of all zeros given a numerical value and the index of row and columns for this value. 3 Inputs: ...

10年以上前

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Create a Matrix of Zeros
Given an input x, create a square matrix y of zeros with x rows and x columns.

10年以上前

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Model a falling body
An object is falling freely from a height of 22 meters under the force of gravity. <<http://blogs.mathworks.com/images/seth/c...

10年以上前