photo

Roger Wohlwend


Last seen: 7 Tage vor |  Aktiv seit 2012

Followers: 0   Following: 0

Nachricht

Professional Interests: Time Series Analysis, Financial Modeling, Forecasting

Statistik

All
  • 6 Month Streak
  • Thankful Level 1
  • Knowledgeable Level 4
  • First Answer
  • Solver

Abzeichen anzeigen

Feeds

Anzeigen nach

Gelöst


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...

etwa 8 Jahre vor

Gelöst


Return 'on' or 'off'
When the input is true, return 'on', otherwise, return 'off'.

etwa 8 Jahre vor

Gelöst


Check if number exists in vector
Return 1 if number _a_ exists in vector _b_ otherwise return 0. a = 3; b = [1,2,4]; Returns 0. a = 3; b = [1,...

etwa 8 Jahre vor

Gelöst


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

etwa 8 Jahre vor

Gelöst


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 ...

etwa 8 Jahre vor

Gelöst


Back to basics 11 - Max Integer
Covering some basic topics I haven't seen elsewhere on Cody. Return the largest positive integer MATLAB can handle.

etwa 8 Jahre vor

Gelöst


Right and wrong
Given a vector of lengths [a b c], determines whether a triangle with those sides lengths is a right triangle: <http://en.wikipe...

etwa 8 Jahre vor

Gelöst


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

etwa 8 Jahre vor

Gelöst


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

etwa 8 Jahre vor

Gelöst


Is this triangle right-angled?
Given three positive numbers a, b, c, where c is the largest number, return *true* if the triangle with sides a, b and c is righ...

etwa 8 Jahre vor

Gelöst


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, ....

etwa 8 Jahre vor

Gelöst


Fahrenheit to Celsius using multiple statements
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...

etwa 8 Jahre vor

Gelöst


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

etwa 8 Jahre vor

Gelöst


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...

etwa 8 Jahre vor

Gelöst


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

etwa 8 Jahre vor

Gelöst


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

etwa 8 Jahre vor

Gelöst


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...

etwa 8 Jahre vor

Gelöst


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

mehr als 8 Jahre vor

Gelöst


Is my wife right?
Regardless of input, output the string 'yes'.

mehr als 8 Jahre vor

Gelöst


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...

mehr als 8 Jahre vor

Gelöst


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

mehr als 8 Jahre vor

Gelöst


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 ...

mehr als 8 Jahre vor

Gelöst


Nearest Numbers
Given a row vector of numbers, find the indices of the two nearest numbers. Examples: [index1 index2] = nearestNumbers([2 5 3...

mehr als 8 Jahre vor

Gelöst


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...

mehr als 8 Jahre vor

Gelöst


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...

mehr als 8 Jahre vor

Gelöst


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...

mehr als 8 Jahre vor

Gelöst


Finding Perfect Squares
Given a vector of numbers, return true if one of the numbers is a square of one of the other numbers. Otherwise return false. E...

mehr als 8 Jahre vor

Gelöst


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

mehr als 8 Jahre vor

Gelöst


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

fast 12 Jahre vor

Gelöst


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 ...

fast 12 Jahre vor

Mehr laden