A résolu


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

plus de 12 ans il y a

A résolu


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

plus de 12 ans il y a

A résolu


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 = ...

plus de 12 ans il y a

A résolu


Sum of diagonal of a square matrix
If x = [1 2 4; 3 4 5; 5 6 7] then y should be the sum of the diagonals of the matrix y = 1 + 4 + 7 = 12

plus de 12 ans il y a

A résolu


Solve the Sudoku Row
*Description* A simple yet tedious task occurs near the end of most Sudoku-solving algorithms, computerized or manual. The ta...

plus de 12 ans il y a

A résolu


Find the sum of the elements in the "second" diagonal
Find the sum of the elements in the diagonal that starts at the top-right corner and ends at the bottom-left corner.

plus de 12 ans il y a

A résolu


Lightning strike distance: Writing a function
Write a function named LightningDistance that outputs "distance" given input "seconds". Seconds is the time from seeing lightnin...

plus de 12 ans il y a

A résolu


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

plus de 12 ans il y a

A résolu


Pizza value using expression with parentheses
Pizza prices are typically listed by diameter, rather than the more relevant feature of area. Compute a pizza's value (cost per ...

plus de 12 ans il y a

A résolu


Arrange Vector in descending order
If x=[0,3,4,2,1] then y=[4,3,2,1,0]

plus de 12 ans il y a

A résolu


Sorted highest to lowest?
Return 1 if the input is sorted from highest to lowest, 0 if not. Example: 1:7 -> 0 [7 5 2] -> 1

plus de 12 ans il y a

A résolu


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...

plus de 12 ans il y a

A résolu


inner product of two vectors
inner product of two vectors

plus de 12 ans il y a

A résolu


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 ...

plus de 12 ans il y a

A résolu


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

plus de 12 ans il y a

A résolu


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...

plus de 12 ans il y a

A résolu


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

plus de 12 ans il y a

A résolu


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

plus de 12 ans il y a

A résolu


Which doors are open?
There are n doors in an alley. Initially they are all shut. You have been tasked to go down the alley n times, and open/shut the...

plus de 12 ans il y a

A résolu


Simple equation: Annual salary
Given an hourly wage, compute an annual salary by multiplying the wage times 40 and times 50, because salary = wage x 40 hours/w...

plus de 12 ans il y a

A résolu


Reverse Run-Length Encoder
Given a "counting sequence" vector x, construct the original sequence y. A counting sequence is formed by "counting" the entrie...

plus de 12 ans il y a

A résolu


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 = ...

plus de 12 ans il y a

A résolu


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, ...

plus de 12 ans il y a

A résolu


Balanced number
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...

plus de 12 ans il y a

A résolu


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

plus de 12 ans il y a

A résolu


Too mean-spirited
Find the mean of each consecutive pair of numbers in the input row vector. For example, x=[1 2 3] ----> y = [1.5 2.5] x=[1...

plus de 12 ans il y a

A résolu


Bullseye Matrix
Given n (always odd), return output a that has concentric rings of the numbers 1 through (n+1)/2 around the center point. Exampl...

plus de 12 ans il y a

A résolu


Distance walked 1D
Suppose you go from position 7 to 10 to 6 to 4. Then you have walked 9 units of distance, since 7 to 10 is 3 units, 10 to 6 is 4...

plus de 12 ans il y a

A résolu


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...

plus de 12 ans il y a

A résolu


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...

plus de 12 ans il y a

Charger plus