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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 ...

3 Tage ago

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Bitshift cannot work on negative numbers

I believe this is happening for the following reason: The documentation states that "If A is a double array, and ASSUMEDTYPE is...

Bitshift cannot work on negative numbers

I believe this is happening for the following reason: The documentation states that "If A is a double array, and ASSUMEDTYPE is...

5 Tage ago | 2

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Compute a sum of Ramanujan

Srinivasa Ramanujan defined the following function: Write a function to compute for various values of . See also Cody Proble...

5 Tage ago

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Matrix convolution

A certain convolution step involves an elementwise multipication between two 3x3 matrices and taking the resulting sum of the el...

7 Tage ago

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Matrix Indexing

Given a matrix A and scalars r,c,i, find the product of two elements, with the first element located at row r and column c (doub...

7 Tage ago

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Row operations

Given a matrix A and scalars m and n, add the mth row to the nth row. You can assume that the values of m and n are reasonable. ...

9 Tage ago

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Switch two elements in vector

Exchange the elements in the mth and nth positions in a given vector v. Thus, if m = 1, n= 4 and v = [23 1 4 5 10], then the res...

9 Tage ago

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Stacking vectors into a matrix

Given a 4x1 vector a, and a 2x2 matrix b, create a matrix M in which the first 2 rows are each identical to a and the last two r...

9 Tage ago

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Vector creation using colon operator

Create a vector y containing n uniformly spaced values between a and b, with a < b. Use the colon (:) operator.

9 Tage ago

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Vector creation using linspace

Create a vector y containing n uniformly spaced values between a and b, with a < b. Use linspace.

9 Tage ago

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Logarithmically spaced vector creation using logspace

Create a vector y containing n logarithmically spaced values between a and b, with a < b. Use the logspace operator.

9 Tage ago

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Logarithmically spaced vector creation using linspace

Create a vector y containing n logarithmically spaced values between a and b, with a < b. Avoid using logspace and use the linsp...

9 Tage ago

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Right shift an array n times with constant space.

Right shift an array n times with constant space, that is, no extra array can be used. Right shift operation: Last element com...

9 Tage ago

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Determine the average number of rounds for the following game.

Each round a uniformly distributed random number is picked between 0 and 1. The game ends when the sum of the random numbers is ...

10 Tage ago

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preventing a war!!

essume you are a student and your family paid a lot of money for your classes but unfortunately the online classes made you a ...

10 Tage ago

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Find the smallest integer m such that n divides m!

Write a function that takes an integer and finds the smallest integer whose factorial is divisible by . For example, if , then...

10 Tage ago

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Find the number of days in a given year

Given a year number (eg. 2000) as input, find how many days are there in the given year.

12 Tage ago

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Who am I ?

Who am I ? Write any function that reveals itself under these constraints. Hint: I am combinatorial code, and I don't like stat...

17 Tage ago

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Solve an ODE: equation C

Write a function to solve the following ordinary differential equation: with and . The parameter is a constant. The functi...

17 Tage ago

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Count unique orderings of vertices of a polygon

Cody Problem 2671 asks us to determine whether four points can be the corners of a rectangle. The points are not necessarily inp...

18 Tage ago

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Sum the elements in rows of the Levine triangle

The Levine triangle starts as follows: Row 0: 2 Row 1: 1 1 Row 2: 1 2 Row 3: 1 1 2 To construct each row, r...

22 Tage ago

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Determine when snow started

R.P. Agnew posed the following problem: It starts snowing in the morning and continues steadily throughout the day. A snowplow t...

22 Tage ago

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Eliminate redundant numbers in text

Occasionally someone might write text such as Briefly explain one (1) common problem that can result from the constant use of ...

23 Tage ago