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2 years ago

Create a row array from 9 to 1, using the double colon operator.

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1 year ago

Given a word, determine its score in <http://en.wikipedia.org/wiki/Scrabble Scrabble>. The input string will always be provide...

Given a string s representing a list of numbers, find the five consecutive numbers that multiply to form the largest number. Spe...

Write a function that accepts a cell array of strings and returns another cell array of strings *with only the duplicates* retai...

The <http://en.wikipedia.org/wiki/Goldbach's_conjecture Goldbach conjecture> asserts that every even integer greater than 2 can ...

Given a handle fh to a function which takes a scalar input and returns a scalar output and an integer n >= 1, return a handle f...

This question was inspired by a Stack Overflow question forwarded to me by Matt Simoneau. Given a vector x, make an indexed pro...

Given a collection of points, return the indices of the rows that contain the two points most distant from one another. The inpu...

Given the string s1, return the string s2 with the target characters removed. For example, given s1 = 'the main event' your ...

Add all the integers from 1 to n in which the digit m does not appear. m will always be a single digit integer from 0 to 9. no...

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

<http://en.wikipedia.org/wiki/Benford%27s_law Benford's Law> states that the distribution of leading digits is not random. This...

Given a lowercase letter or a digit as input, return the row where that letter appears on a <http://en.wikipedia.org/wiki/Keyboa...

Some numbers like 323 are palindromes. Other numbers like 124 are not. But look what happens when we add that number to a revers...

Given a string with text and digits, add all the numbers together. Examples: Input str = '4 and 20 blackbirds baked in a...

Given a matrix, m-by-n, find all the rows that have the same "increase, decrease, or stay same" pattern going across the columns...

Given a string, remove all leading and trailing spaces (where space is defined as ASCII 32). Input a = ' singular value deco...

Given a vector x, return a vector y of the unique values in x sorted by the number of occurrences in x. Ties are resolved by a ...

Given a "counting sequence" vector x, construct the original sequence y. A counting sequence is formed by "counting" the entrie...

Given a Fahrenheit value F, convert to a Celsius value C. While the equation is C = 5/9 * (F - 32), as an exercise use two state...

Given an amount of currency, return a vector of this form: [100 50 20 10 5 2 1 0.5 0.25 0.1 0.05 0.01] Example: Input a = ...

If you have two small strings, like 'a' and 'b', return them put together like 'ab'. 'a' and 'b' => 'ab' For extra ...

Remove all the redundant elements in a vector, but keep the first occurrence of each value in its original location. So if a =...

If x=[0,3,4,2,1] then y=[4,3,2,1,0]

Given two date strings d1 and d2 of the form yyyy/mm/dd HH:MM:SS (assume hours HH is in 24 hour mode), determine how much time, ...

If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23...

Given a circle's radius, compute the circle's area. Use the built-in mathematical constant pi.

Given a positive integer find whether it is a balanced number. For a balanced number the sum of first half of digits is equal to...

Replace NaNs with the number that appears to its left in the row. If there are more than one consecutive NaNs, they should all ...

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