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Who knows the last digit of pi?
There is only one man who knows the last digit of pi, who is that man? Give the name of that man, who, by popular believe, can ...

oltre 7 anni ago

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2 b | ~ 2 b
Given a string input, output true if there are 2 b's in it, false if otherwise Examples: 'Macbeth' -> false 'Publius Cor...

oltre 7 anni ago

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Find the alphabetic word product
If the input string s is a word like 'hello', then the output word product p is a number based on the correspondence a=1, b=2, ....

oltre 7 anni ago

Problem


function on a moving window
Create a function that applies an operation (such as @sum, @mean, @std, @norm etc) to a moving window of the data. First exam...

oltre 7 anni ago | 1

Solved


function on a moving window
Create a function that applies an operation (such as @sum, @mean, @std, @norm etc) to a moving window of the data. First exam...

oltre 7 anni ago

Solved


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

oltre 7 anni ago

Solved


All capital?
Are all the letters in the input string capital letters? Examples: 'MNOP' -> 1 'MN0P' -> 0

oltre 7 anni ago

Solved


Back to basics 15 - classes
Covering some basic topics I haven't seen elsewhere on Cody. Return the class of the input variable.

oltre 7 anni ago

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Back to basics 8 - Matrix Diagonals
Covering some basic topics I haven't seen elsewhere on Cody. Given an input vector of numbers, output a square array with the...

oltre 7 anni ago

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Convert Roman to Arabic Numerals
Based upon what I see on tv and at the movies, the use of Roman numerals indicates something is important or sophisticated (e.g....

oltre 7 anni ago

Solved


Swap the input arguments
Write a two-input, two-output function that swaps its two input arguments. For example: [q,r] = swap(5,10) returns q = ...

oltre 7 anni ago

Solved


Bottles of beer
Given an input number representing the number of bottles of beer on the wall, output how many are left if you take one down and ...

oltre 7 anni ago

Solved


Pangrams!
A pangram, or holoalphabetic sentence, is a sentence using every letter of the alphabet at least once. Example: Input s ...

oltre 7 anni ago

Solved


Which values occur exactly three times?
Return a list of all values (sorted smallest to largest) that appear exactly three times in the input vector x. So if x = [1 2...

oltre 7 anni ago

Solved


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

oltre 7 anni ago

Solved


Back and Forth Rows
Given a number n, create an n-by-n matrix in which the integers from 1 to n^2 wind back and forth along the rows as shown in the...

oltre 7 anni ago

Solved


Return a list sorted by number of occurrences
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 ...

oltre 7 anni ago

Solved


Quote Doubler
Given a string s1, find all occurrences of the single quote character and replace them with two occurrences of the single quote ...

oltre 7 anni ago

Solved


Elapsed Time
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, ...

oltre 7 anni ago

Solved


Making change
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 = ...

oltre 7 anni ago

Solved


Counting Money
Add the numbers given in the cell array of strings. The strings represent amounts of money using this notation: $99,999.99. E...

oltre 7 anni ago

Solved


Binary numbers
Given a positive, scalar integer n, create a (2^n)-by-n double-precision matrix containing the binary numbers from 0 through 2^n...

oltre 7 anni ago

Solved


Is my wife right? Now with even more wrong husband
Again, as in "Is my wife right?" ( <http://www.mathworks.com/matlabcentral/cody/problems/149-is-my-wife-right> ), answer 'yes' r...

oltre 7 anni ago

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Omit columns averages from a matrix
Omit columns averages from a matrix. For example: A = 16 2 3 13 5 11 10 8 9 7 ...

oltre 7 anni ago

Solved


inner product of two vectors
inner product of two vectors

oltre 7 anni ago

Solved


Sum all integers from 1 to 2^n
Given the number x, y must be the summation of all integers from 1 to 2^x. For instance if x=2 then y must be 1+2+3+4=10.

oltre 7 anni ago

Solved


Target sorting
Sort the given list of numbers |a| according to how far away each element is from the target value |t|. The result should return...

oltre 7 anni ago

Solved


Who Has the Most Change?
You have a matrix for which each row is a person and the columns represent the number of quarters, nickels, dimes, and pennies t...

oltre 7 anni ago

Solved


Encode Roman Numerals
Create a function taking a non-negative integer as its parameter and returning a string containing the Roman Numeral representat...

oltre 7 anni ago

Solved


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 ...

oltre 7 anni ago

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