Solved


Rotate counterclockwise a matrix 90 deg with left-bottom element
Example: Input [ 1 2 3 4 5 6 ] Output [ 3 6 2 5 1 4 ]

17 dagar ago

Problem


List modest numbers up to n
After determining the nude numbers, or the numbers that openly display some of their divisors as their digits, one would think t...

17 dagar ago | 3 | 4 solvers

Solved


Primes Faster for Large N
This Challenge is to improve the "primes" function for speed. This may be accomplished by fixing memory usage. The Matlab fun...

18 dagar ago

Problem


Determine whether a number is unprimeable
The number 204 is unprimeable because no single digit can be changed to make it prime. In contrast, the number 207 is not unprim...

18 dagar ago | 2 | 6 solvers

Solved


Test within tolerance
Given a vector of experimental data, D, and a vector of truth data, T, return FALSE if any +/- errors (D-T) are outside a given ...

19 dagar ago

Problem


Count the ways to draw non-intersecting chords between points on a circle
There are 9 ways to draw non-intersecting chords between four points on the perimeter of a circle (including no chords at all). ...

19 dagar ago | 0 | 3 solvers

Solved


Maximum of ND-array
Find the maximum element of a N dimensional array. Example: A=[1 2 4 ; -20 4 10]; The maximum is 10.

19 dagar ago

Solved


How to get the additive inverse of a uint8.
Given x as a uint8 find the additive inverse y.

19 dagar ago

Solved


Repeat the entries of the vector to their reference times in the vector.
e.g for input x: [ 7 3 9 5] output y: [ 7 3 3 9 9 9 5 5 5 5]

19 dagar ago

Solved


Pad zero between every adjacent values of the vector.
you are given a vector x. you have to make an output vector y with zeros padded between every adjacent values of x. e.g x: ...

19 dagar ago

Solved


Find unique number in input
Find value that occurs in odd number of input elements.

19 dagar ago

Solved


Free-time Equation
Given a 7-day week, an *_nc_* -number of *_tc_* -hour classes, *_ta_* -hours awake in a day, and *_tw_* -hours that you work in ...

19 dagar ago

Solved


Coefficients and vertex of a parabola given 3 points
Given 3 points, each defined by x and y, compute the coefficients: [a,b,c] of a parabola with equation: y = ax^2 + bx + c passin...

19 dagar ago

Problem


Determine whether a number is a fibodiv number
The number 14 is a fibodiv number because you can divide it into 1 and 4, use those numbers as the seeds for a Fibonacci sequenc...

19 dagar ago | 1 | 6 solvers

Problem


Find the nth nude number
The number 672 is a nude number because it openly displays three of its divisors: 6, 7, and 2. In other words, a nude number is ...

22 dagar ago | 1 | 4 solvers

Solved


Easy Sequences 11: Factorial Digits without Trailing Zeros
Here is an easy one... It is not difficult to count the number of digits of the factorial of a given number. For example for 'n...

23 dagar ago

Solved


Easy Sequences 10: Sum of Cumsums of Fibonacci Sequence
The function F(n) is defined as the set of Fibonacci numbers from the first up to the n-th. S(n) is the result of applying to F,...

23 dagar ago

Solved


Find the solution of algebraic equation
Find the solution of algebraic equation of the form an*x^n + a(n-1)*x^(n-1) + (an-2)*x^(n-2)+...... a2*x^2 + a1*x^1 + a0 = 0; ...

23 dagar ago

Solved


Odd row
Create a row 'y' with odd numbers where the potential maximum number is given by 'x' and the space between them by 'm'. The firs...

23 dagar ago

Solved


Alternate list of elements
Write a function that combines two lists by alternating the elements, e.g. ['a','b','c'], ['1','2','3'] → 'a1b2c3'.

23 dagar ago

Solved


Integer Sequence - 1
Check the test suite to determine the relationship between input integer scalar and output integer scalar.

25 dagar ago

Solved


Schrödinger dog
Everyone knows that dogs are less unpredictable than cats. But is that proven? Is that measurable at all? YES! NOW IT IS! ...

25 dagar ago

Solved


Cubic Integer Constrained Solution
Find an integral non-trivial solution (x,y,z ~=0) (x=0 or y=0 or z=0 are trivial) for the cubic equation 987,654,321x + ...

25 dagar ago

Solved


Implement full adder circuit
Implement full adder circuit (Full Adder) Inputs signals are a, b and cin. Output signal y = [cout sum]

25 dagar ago

Solved


Circular Segment Area
Let us consider a circle with radius . If we draw an angle (in radians) from the center of the circle, the two radii forming th...

25 dagar ago

Solved


Parse string and identify specific string sequence in algebraic equation
Given a string S that defines an algebraic expression such as: S= 'X= A1 + A2*(Y1 + A3*Y3)*exp( A4*Y12 + Y1) ;' return a...

25 dagar ago

Solved


Create a recurrence matrix for a vector of data
In <https://en.wikipedia.org/wiki/Conversation_analysis conversation analysis>, it's often useful to track the contributions fro...

25 dagar ago

Solved


Triple function composition
Given three functions f,g and h, create the composed function y=f(g(h)). Example f = @(x) x+1 g = @(x) x/2 h = @(x) ...

25 dagar ago

Solved


Easy Sequences 4: Eliminate the Days of Confusion
If a date is written in purely numeric format some dates can be confusing, if we don't know the date format used. For example, "...

30 dagar ago

Solved


Numeric array to cell array of strings (easy)
Given a numeric array (A) and a 1xk cell array of strings (C), return a cell array (B) that is the same size as A and in which e...

30 dagar ago

Load more