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Write a cubic formula function

Create a function that will output the three roots of a cubic equation specified by the 4 coefficients listed as input. The outp...

3 meses ago

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Get the combinations

Consider p,q = 2 vectors of same or different length. Get a Output Array which has all the possible combinations of Elements o...

3 meses ago

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FIFA World Cup 2014 : Offside

This problem is about offside rule in football (soccer). Input is a matrix with mostly zeros and a few 1, 2, 3 and 4s. A zer...

3 meses ago

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Create a function handle that reverses the input arguments of another function handle

Given a function that takes two input arguments and returns one output, create another function handle that performs the same op...

3 meses ago

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Expression or variable?

Test if arguments of the function are all variables (workspace variables names). Return 1 if yes, 0 if no. For example : ...

3 meses ago

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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) ...

3 meses ago

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The Google Interview: Two Eggs Problem

Consider the following problem, a popular Google interview question: A firm has invented a super-strong egg. For publicity pu...

3 meses ago

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Calculate time taken by light to reach earth surface

We know the time(seconds) taken by light to reach surface of earth. What if the distance varies yearly or source of light moves ...

3 meses ago

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Compute average gain for some bets.

Given a vector containg the odds of some events in decimal format (e.g., |odds=[1.3 2.5 1.5]| ) and a vector of the same dimensi...

3 meses ago

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Basic Monte Carlo Simulation

Input is a matrix including service time and probability of service time. Another input is a random number. Function should tran...

3 meses ago

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Decrypt Polybius

Decrypt Polybius square. Please refer to Problem 1150 Polybius Square. input [13 33 14 51] output 'cody'; input [23 0 26 33 4...

3 meses 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]

3 meses ago

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Minimum Maximum Sort Array

sort one array by put minimum value followed by maximum as follow a=[2 3 1 5] and the solution is y=[1 5 2 3 3 2 5 1];

3 meses ago

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Loading/Expanding a ZIP file from File Exchange

This challenge is to load a ZIP file from Mathworks File Exchange and UNZIP the contents. *Input:* url_link of ZIP'd file ...

3 meses ago

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Babylonian method

Calculate the square root of a given positive number a using the Babylonian method (https://en.wikipedia.org/wiki/Methods_of_co...

3 meses ago

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Find the number of rectangles

There is a m*n grade given. Find the number of rectangles in the grid. Remember, a square is also a rectangle.

3 meses ago

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Homemade: Control Charts

This problem is a simple version of control charts in statistics. Intput consists from 30 or more observations. * Upper limi...

3 meses ago

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Find unique number in input

Find value that occurs in odd number of input elements.

3 meses ago

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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...

3 meses ago

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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...

3 meses ago

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Poly2mask, drawpolygon or patch

Recently, I tried to plot a polygon in matlab, and I found there is a lot of embedded function that can be used. However, some f...

3 meses ago

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List the cuban primes

The number 61 is a cuban prime because it is prime and the difference two cubes, 64 and 125. Write a function to list the cuba...

3 meses ago

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Compute the largest number whose prime factors sum to n

This problem deals with a sequence whose tenth term is 36 because the prime factors of 36 (2, 2, 3, 3) sum to 10. The number 32 ...

3 meses ago

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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 ...

4 meses ago

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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, "...

4 meses ago