Solved

Join Strings with Multiple Different Delimiters

The idea is to form the string S by interleaving the elements of a cell array of strings DELIMITER and another cell array of st...

2 days ago

Solved

Simple Decoder Ring

The stereotypical _decoder ring_ is remembered as a cereal box prize from the 1950s. Kids learned about cryptography by startin...

2 days ago

Solved

Eliminate Polysyllabics: Long live short words!

Given a string s1, return s2 in which all the words with more than one syllable have been removed. To make things simple, we ...

3 days ago

Solved

Evaluate the Struve function

The <https://en.wikipedia.org/wiki/Struve_function Struve function> *H*_a(x) is a solution to an inhomogeneous form of Bessel's ...

3 days ago

Solved

Compute the perimeter of an ellipse

While the area of an ellipse is straightforward to compute, the perimeter (or circumference) is more complicated. The perimeter ...

3 days ago

Solved

Evaluate the incomplete elliptic integrals

Elliptic integrals can be used to evaluate integrals whose integrands have the form R(x,sqrt(P(x))), where R(x,y) is a rational ...

3 days ago

Solved

Evaluate the zeta function for real arguments > 1

The <https://en.wikipedia.org/wiki/Riemann_zeta_function Riemann zeta function> is important in number theory. In particular, th...

3 days ago

Solved

Evaluate the gamma function

The <https://mathworld.wolfram.com/GammaFunction.html gamma function> is a generalization of the factorial, and it appears in ma...

3 days ago

Solved

Find similar sequences

Another problem inspired by a question on the <http://www.mathworks.com/matlabcentral/answers answers> forum. Given a matrix ...

5 days ago

Solved

Generate Square Wave

Generate a square wave of desired length, number of complete cycles and duty cycle. Here, duty cycle is defined as the fraction ...

5 days ago

Solved

Sum of series VII

What is the sum of the following sequence: Σ(km^k)/(k+m)! for k=1...n for different n and m?

5 days ago

Solved

Sum of series VI

What is the sum of the following sequence: Σk⋅k! for k=1...n for different n?

5 days ago

Solved

Sum of series V

What is the sum of the following sequence: Σk(k+1) for k=1...n for different n?

5 days ago

Solved

Sum of series IV

What is the sum of the following sequence: Σ(-1)^(k+1) (2k-1)^2 for k=1...n for different n?

5 days ago

Solved

Sum of series III

What is the sum of the following sequence: Σ(2k-1)^3 for k=1...n for different n?

5 days ago

Solved

Sum of series II

What is the sum of the following sequence: Σ(2k-1)^2 for k=1...n for different n?

5 days ago

Solved

Sum of series I

What is the sum of the following sequence: Σ(2k-1) for k=1...n for different n?

5 days ago

Solved

Snakes on a plane

Given the dimensions of a 2-d plane, create a matrix where a "snake" of ones occupies the plane from top left to bottom right. ...

5 days ago

Solved

Balanced Ternary Numbers: Easy as |, |-, |o

This problem concerns the so-called <http://en.wikipedia.org/wiki/Balanced_ternary balanced ternary> system for representing num...

5 days ago

Solved

Create a random vector of integers with given sum

Your task today is to write a function that returns a vector of integer numbers, between, and including, 1 and m, of which the s...

5 days ago

Solved

Create a random logical vector of N elements of which M are true.

Your task for tomorrow is to create a random binary (logical) vector of N elements of which M are true. For example: ran...

5 days ago

Solved

Generate a random matrix A of (1,-1)

Input n: is an positive integer which serves as the dimension of the matrix A; Output: A=(Aij),where each entry Aij is either...

5 days ago

Solved

Rate of event occurence: find percentiles of the distribution (for smallish rates)

*In this problem you need to find the 5th and 95th percentiles of a Poisson distribution defined by parameter _μ_ (the mean rate...

6 days ago

Solved

Given n, create n random numbers such that their standard deviation is also n.

Given n, create n random numbers such that their standard deviation is also n.

6 days ago

Solved

Eliminate Outliers Using Interquartile Range

Given a vector with your "data" find the outliers and remove them. To determine whether data contains an outlier: # Identi...

6 days ago

Solved

Cryptomath: Addition

W A I T + A L L --------- G I F T S equals: 9 6 0 8 + 6 7 7 --------- 1 0 2 8 5 Given str...

6 days ago

Solved

Cumulative probability of finding an unlikely combination

This is a supplemental problem to the <http://www.mathworks.com/matlabcentral/cody/problems/621-cryptomath-addition CryptoMath> ...

6 days ago

Solved

Convert a vector into a number

This is a sub problem related to this problem: <http://www.mathworks.com/matlabcentral/cody/problems/621-cryptomath-addition>...

6 days ago

Solved

Probability of red tulips (at both ends of a row)

I planted tulip bulbs in a row on my flower bed. I thought that I had planted white tulips all. However, later, it turned out t...

7 days ago