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Find the starting index of a consecutive condition
Given a logical vector |v|, and a positive integer |n|, return the smallest index |i| that satisfies: all( v(i : i+n-1) ) =...

7 years ago

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Find the repeating elements and repetitions of a row vector.
So let's say that x is a vector, for example, x = [4, 4, 5, 5, 5, 6, 7, 7，8, 8, 8, 8] Now we want to get the following two ve...

7 years ago

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How long does it take to run a bath?
Given the *volume flow rate* (volume/time) of a faucet and the *volume* of a bath tub, find the amount of time it takes to fill ...

7 years ago

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Volume of Spherical Shell
In three-dimensional space, a spherical shell can be constructed from two concentric spheres. Determine the volume of a spheric...

7 years ago

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Perimeter of a quadrilateral
There are four cars starting at a point. The first car points north, the second one points east, the third one points south, an...

7 years ago

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2) Are you more familiar with iteration methods or Linear Algebra ? Let's see together.
Referring to problem: https://www.mathworks.com/matlabcentral/cody/problems/44530-are-you-more-familiar-with-iteration-method...

7 years ago

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Are you more familiar with iteration methods or Linear Algebra? Let's see together.
Given a sum result *_x_* value of a *_N_* number of addends, build an array of _*N*_ elements _*y*_ such that the following equa...

7 years ago

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Normie Function (2)
Another _Normie Function_ defined as _f(n)= f(n-1)+f(n-2)+f(n-3)_ , *when n>3* and _1_ , *when n<=3*. *Find the nth term of this...

7 years ago

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Normie Function
So, I built a function and gave it a name- _Normie_. *Find the nth term of Normie function:* _f(n)= 1*f(n-1)+ 2*f(n-3)+ 3_ , *...

7 years ago

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No more zeros
Given an array with zeros at the beginning or at the end, you should get the output without these zeros: input = [zeros(5...

7 years ago

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concatenate the elements
you should concatenate the elements of a matrix in one dimensional array, for example if the input is A = [1 2 3; 4 5 6; 7 ...

7 years ago

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Combination of Vectors
Return a combination of vectors x1, x2 based on y1, y2 per: x(j) = 0 if y1(j) < y2(j) x(j) = x1(j) if y1(j)...

7 years ago

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Determine the number of correct and incorrect answers
In a Multiple Choice Question Test, you are to sort out answer from 4 samples, one of them is correct answer. There are 50 quest...

7 years ago

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Detect pair of equal values in a Matrix
A 2D matrix of 2 rows and N columns with random integer numbers. A = [3 1 2 4 6 6 7; 7 3 2 1 5 2 4] ...

7 years ago

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Find the missing numbers.
Total *N* numbers are in the series of natural numbers ( *1,2,3,...,N* ). The input is an array (unsorted) of those natural num...

7 years ago

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¡Busca el extremo!
Crea una función que calcule el extremo de una parábola (máximo o mínimo absoluto) cuyos datos son proporcionados por el usuario...

7 years ago

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Calcular la razón de proporcionalidad
Dadas dos magnitudes (a y b) en forma de vectores, crear una función que permita obtener la razón de proporcionalidad _*m*_ sólo...

7 years ago

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¿Es una parábola?
Dados los datos de las magnitudes _*x*_ e _*y*_, crear una función que permita conocer si se trata de una parábola o no, indican...

7 years ago

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¡Puntos de corte!
Crea una función que permita calcular los puntos de corte con los ejes X e Y de una función cuadrática indicada por el usuario e...

7 years ago

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The maximum sum of squares (testing)
Create a function file with an input maxval to determine the maximum number of terms for the series 1^2 + 2^2 + 3^2 + ... such t...

7 years ago

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Implement str2cell
You are given a String that is equivalent to a cell array of scalars or vectors. Transform this String to its equivalent Cell a...

7 years ago

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Number Persistence
A number's persistence is the number of steps required to reduce it to a single digit by multiplying all its digits to obtain a ...

7 years ago

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Grid traversal
Given a line defined by (x1,y1) & (x2,y2),return the number of squares that the line crosses on the grid (a square is 1x1). ...

7 years ago

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Minimal cost
A power house, P, is on one bank of a straight river W meters wide, and a factory, F, is on the opposite bank L meters downstr...

7 years ago

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length of string on cylinder
A cylinder H cm high has a circumference of C cm. A string makes exactly N complete turns round the cylinder while its two ends ...

7 years ago

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Number of divisors of a given number
Given a Number n, return the number of his divisors without listing them example: n=14 ; Divisors={1,7,2,14} ; y=4 n=...

7 years ago

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Which way to go?
Given an m*n grid, How many ways are there to go from upper left corner to the lower right one? You can only move right...

7 years ago

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Zigzag of square matrix
find zigzag of square matrix in one dimension array a=[1 2 3;4 5 6;7 8 9]; should return b= [1 2 4 7 5 3 6 8 9]

7 years ago

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Dial Up
Each number on telephone keypads, except 0 and 1, corresponds to a set of uppercase letters as shown in this list: 2 ABC, 3 DEF...

7 years ago

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Second Diagonal
Transpose the matrix from it's second diagonal.

7 years ago