Problème

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...

plus de 9 ans il y a | 1 | 53 solveurs

Problème

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...

plus de 9 ans il y a | 1 | 60 solveurs

A résolu

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

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A résolu

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

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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: ...

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

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

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

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

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

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

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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, ...

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

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

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

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Problème

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...

plus de 9 ans il y a | 4 | 53 solveurs

A résolu

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 ...

plus de 9 ans il y a

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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...

plus de 9 ans il y a

A résolu

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. ...

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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...

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Problème

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...

plus de 9 ans il y a | 4 | 75 solveurs

A résolu

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 ...

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

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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...

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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...

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

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Problème

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 ...

plus de 9 ans il y a | 9 | 90 solveurs

A résolu

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

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Problème

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 ...

plus de 9 ans il y a | 9 | 193 solveurs

A résolu

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 ...

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