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Easy Sequences 104: One-line Code Challenge - GCDs of Sum of Consecutive Cubes
For a natural number, n, the function CC(n) is defined as follows: In other words, CC(n) is the sum of cubes ...

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Identify de Polignac numbers
The numbers 125 and 329 can be written as the sum of a prime and a power of 2. For example, , and . The numbers 127 and 331, whi...

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Write a MATLAB function that takes in two inputs, a and b, and computes the sum of the squares of a and b.

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Write a function to compute the area of a rectangle given its width and height

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Write a MATLAB function that takes two integers n and k as input and returns the value of n^k, where n is the base and k is the exponent. If k is negative, the function should return an error message.

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Solve an ODE: draining tank
Write a function to compute the time to drain a cylindrical tank of diameter from an initial level to a level . The outflow oc...

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Compute infiltration and runoff under constant precipitation with the Green-Ampt method
Problem statement Write a function that computes infiltration, depression storage, and runoff using the Green-Ampt method. It s...

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List all of the integer points in a bounded feasble region

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A Binary Search
One way to locate a target value in a sorted array, is to use a binary search algorithm. Here, you test if the midpoint in the a...

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Convert vector of strings to lower triangular matrix
Given a non-empty vector vec of strings, please put its elements into the lower triangular half of a square matrix M column-wise...

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List numbers such that every sum of consecutive positive integers ending in those numbers is composite
The sequence in question in this problem involves numbers such that all sums of consecutive positive integers ending with are ...

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Latest Question On Cody
Get the problem number of the latest submitted Problem on Cody. Copying the test suite code might not help.

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Find the quantization index of an analog value using a 6-bit quantizer.
Given a sinusoidal waveform x(t)=4.5*sin(2*pi*100*t) is sampled at 8000 sample per second. Assume that signal range is between -...

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Can you Jump?
You have been provided with input array of integers. You start with initial position at the first index of this input array, and...

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Find Sign(Zero Crossing) Changes in Array
Example; A = [1 2 3 -3 -4 -1 -24 2 4 -1 -2 3 1]; ans; [1 2 0 -3 -4 -1 0 2 0 -1 ...

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List the two-bit primes
Each year at Christmas, my father-in-law and his partner send me the Puzzle Mania section from the New York Times. This year’s e...

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Toolbox check part 3
In my ongoing quest to highlight obscure parts of MATLAB, the latest challenge is to take 2 string inputs, one a MATLAB toolbox ...

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Zero finder
Write a function named 'zero_finder' that takes a matrix as input and returns the row index of the last zero for each for each c...

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Armstrong Number
Write a function name armstrong_check that checks whether the given input is an Armstrong Number or not. It returns logical True...

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Inscribe a circle in a triangle with a side of length equal to the circle’s circumference
A circle of radius is inscribed in a triangle with a side that has a length equal to the circle’s circumference. The center of ...

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Number of images formed due to two inclined mirrors and their coordinates
There are two mirrors with angle theta between them and there is an object on x axis. Determine the number of images formed and ...

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Determine whether a hydrograph is a unit hydrograph
A hydrograph describes the runoff response of a catchment or watershed to rainfall. It shows the runoff rate (or flow or discha...

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Radius of an inner N-dimensional sphere
A hypercube is an N-dimensional analogue of a square (N=2). Similarly, an N-sphere is an N-dimensional analogue of a circle. Not...

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Easy Sequences 94: GCD Sums
Given positive integer , write the function gSum(x), that sums all the GCD's of the integer pairs . For example in the Excel scr...

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Easy Sequences 96: One-line Code Challenge - Polynomial Folding Function
The Matlab fold function is a very useful functional programming construct. Unfortunatlely, fold is only available in newer Matl...

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Sequence problem
find the nth term of the sequence: 790 1303 2033 ____ 4366 6095

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The rabbit problem
Suppose a newly-born pair of rabbits, one male, one female, are put in a field. Rabbits are able to mate at the age of one month...

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The Yellowstone Permutation
The Yellowstone Permutation is a sequence of positive integers, defined by the following rules: No term is repeated. Given n t...

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Repeat a string (not a character array)
True string are a relatively recent addition to MATLAB, first having been available in R2016. Strings contrast with character ar...

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Given the variable x as your input, multiply it by three and put the result in y.
example input x = 5 output y is 15

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