问题

Modified Upper Matrix Mock
Given a vector v=[1 3 6 9 11], turn it into a matrix 'ramp' like so: m=[1 3 6 9 11; 0 3 6 9 11; 0 0 6 9 11; 0 0 0 9 11; 0 0 0...

8 years 前 | 1 | 49 个解题者

问题

Circular Shift Me
Given a vector v=[1 3 6 9 11], circular shift them while iterating m=[1 3 6 9 11; 11 1 3 6 9; 9 11 1 3 6; 6 9 11 1 3; 3 6 9 1...

8 years 前 | 0 | 57 个解题者

已解决

Strangest ways to get 0
Propose your non-trivial way to get 0. Look mine's, and try to do your best!

8 years 前

已解决

Solving a quadratic equation
Given a, b and c, Return the solution of the following quadratic equation: a*x^2 + b*x + c = 0.

8 years 前

已解决

Polynomial division
Divide a polynomial u by polynomial v and return the quotients only. Example: u = x^4+3*x^3+5*x+3 v = x^2+1 Answer: ...

8 years 前

已解决

Additive persistence
Inspired by Problem 2008 created by Ziko. In mathematics, the persistence of a number is the *number of times* one must apply...

8 years 前

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Accessing elements on the diagonal
Access the diagonal elements of a matrix without 'diag' function

8 years 前

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square root
Find the square root (y) of an input (x).

8 years 前

已解决

Multiple if statements
Write an if-statement that subtracts 5 from outputValue if amplitudeResponse is greater than 10. Write a second if-statement tha...

8 years 前

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Food safety
Assign safeTemperature with 1 if foodTemperature is less than 40 or greater than 165.

8 years 前

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Check bounds
Assign inRange with 1 if userWeight is greater than 100 and less than or equal to 200.

8 years 前

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Genetic markers test
Assign testResult with 1 if either geneticMarkerA is 1 or geneticMarkerB is 1. If geneticMarkerA and geneticMarkerB are both 1, ...

8 years 前

已解决

convert?
* Given a string containing a number followed by pounds or kgs, for example: * 'Billy lost 22 pounds in four weeks.' * 'Maria ...

8 years 前

已解决

Vectorizing, too easy or too hard?
Please insert a . before any ^, * or / in the string. That's it!!

8 years 前

已解决

deconvolution
* Suppose there is a vector v like [1 0 0 -1], representing polynomial coefficients. * In this example, the polynimial is 1*x^3...

8 years 前

问题

Refresh your system of equations
Given square matrix, and solution vector, find the values of the variables Example: xyz = [1 -1 2; 0 2 5; 4 0 -3]; //x-y+2...

8 years 前 | 4 | 50 个解题者

已解决

System of equations
Find a solution to a system of equations represented by a |n| by |n+1| matrix. For instance, [ 2 0 4; => 2*x = 4 ...

8 years 前

已解决

Distance walked 3D
suppose you go from x-y-z coordinates [3,4,2] to [0,0,2] to [0,1,2] to [1,1,2], to [1,1,20] then you walked 25 units of distance...

8 years 前

已解决

Snakes on a plane
Given the dimensions of a 2-d plane, create a matrix where a "snake" of ones occupies the plane from top left to bottom right. ...

8 years 前

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Sorting
Assume that x is an n-by-2 matrix. The aim is to return the first column of x, but sorted according to the second column. Exa...

8 years 前

问题

N-plicate me
Modified version of duplicate and triplicate me. Repeat elements of input vector with given input n Ex: input = [1 2 3 4 5...

8 years 前 | 4 | 68 个解题者

已解决

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 ...

8 years 前

已解决

Function definition: Double down.
* Complete the DoubleDown function to return twice the initialValue.

8 years 前

已解决

Computing wind chill
On a windy day, a temperature of 15 degrees may feel colder, perhaps 7 degrees. The formula below calculates the "wind chill," i...

8 years 前

已解决

Duplicate each element of a vector.
for an n-dimensional vector x, the function should return another vector 2n-dimension which each element is repeated twice. Ex...

8 years 前

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Declaring a string
* Assign streetAddress with the string 1313 Mockingbird Lane.

8 years 前

问题

Implement zero-based indexing for Matrices
Given an input vector and position (which is zero based) output the value Example: x = [1 2; 4 5] pos = [0 1] value = 5 ...

8 years 前 | 9 | 77 个解题者

已解决

Construct an array
* Construct an row array named observedValues with elements sensorReading1, sensorReading2, and sensorReading3.

8 years 前

问题

Rotate matrix by -90 degrees
Rotate a Matrix by -90 degrees Example: X = 1 2 3 4 5 6 7 8 9 output = 7 4 ...

8 years 前 | 9 | 181 个解题者

已解决

Rotate a Matrix by 90 degrees
Rotate a Matrix by 90 degrees Example: If the input is: X = 1 2 3 4 5 6 7 8 9 ...

8 years 前