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Solved

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 ...

2 months ago

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Find numbers in the Popular Computing Z-sequence

Here’s a quick one. In 1977 the magazine Popular Computing sought “problem situations for which the computer is the best (if not...

2 months ago

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Identify Ruth-Aaron numbers

After Hank Aaron hit his 715th home run and passed Babe Ruth’s total of 714, Carl Pomerance noticed that the union of the prime ...

2 months ago

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Period of a pendulum

Consider a small object hanging on a massless thread and pulled back from equilibrium at a small angle. Assuming that the pivot ...

4 months ago

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Derivative of polynomial

Compute the derivative of a given polynomial. The input is an <http://www.mathworks.com/help/matlab/math/representing-polynomial...

4 months ago

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Evaluate the generalized hypergeometric function

The <https://en.wikipedia.org/wiki/Generalized_hypergeometric_function generalized hypergeometric function> is defined as <<...

4 months ago

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Function composition - harder

Write a function that accepts an arbitrary number of function handles f_1, f_2, ..., f_n and returns the composition h. That is,...

7 months ago

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function on a moving window

Create a function that applies an operation (such as @sum, @mean, @std, @norm etc) to a moving window of the data. First exam...

7 months 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...

7 months ago

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Apply Function to Each Field of a Structure Array: Part 2

The builtin <http://www.mathworks.com/help/matlab/ref/structfun.html?=structfun structfun> applies a function handle to each fie...

7 months ago

Solved

Apply Function to Each Field of a Structure Array: Part 1

The builtin <http://www.mathworks.com/help/matlab/ref/structfun.html?=structfun structfun> applies a function handle to each fie...

7 months ago

Solved

Define the operators of function_handles

Suppose f and g are function_handles, try to define f+g,f-g,f*g and f/g. e.g. if f = @(x)x and g = @(x)x+1 ...

7 months ago

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Two-output anonymous function?

Return a function handle that when applied to an input, it produces two outputs: the first is the same as the input, and the sec...

7 months ago

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Handle to an array of functions

Given a cell array of functions that operate on scalars, it is required to return a function handle to process a vector of value...

7 months ago

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Apply a function array to an array of numbers

It is required to apply a cell array of functions to a numerical array, where the functions accept only scalar inputs. Exampl...

7 months ago

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Function composition

Write a function that accepts two function handles f and g and returns the composition h. That is, h = (f o g)(x) = f(g(x)) ...

7 months ago

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Area of a Square

Given the length x of the side of a regular square, find the area of the square, A.

8 months ago

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Perfect square.

Determine if the input is a perfect square or not. Example - If input is 25, return 1. If input is 17, return 0.

8 months ago

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TRON strategy toggle

Detect whether your lightcycle is on same side of existing walls as opponents lightcycle. This function is useful in toggling a...

9 months ago

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The Answer to Life, the Universe, and Everything

A variation of a previous Hitchhiker's Guide to the Galaxy problem. *Inputs:* Life, the Universe, and Everything *Output:*...

9 months ago

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How many jokers?

* Given DNA codes of a group of suspects, * and a code for certain types of jokers, * Count how many jokers of that type. * ...

9 months ago

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Who has power to do everything in this world?

There is only one person who is older than this universe. He is Indian version of Chuck Norris.

9 months ago

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The Hitchhiker's Guide to MATLAB

Output logical "true" if the input is the answer to life, the universe and everything. Otherwise, output logical "false".

9 months ago

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Easy Sequences 8: Triangles with integer sides and prime perimeters

The triangle below is special. It has integer sides and a prime perimeter. Given an integer "n" we want to know how many t...

9 months ago

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Easy Sequences 40: Quadratic Congruence

Quadratic Congruence is a modular equation of the form: . In this exercise you will be given a vector containing the coefficie...

9 months ago

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Easy Sequences 9: Faithful Pairs

A "faithful number" is a non-prime number that is one less or one more than some prime number but not both. For example, for num...

9 months ago