# minnolina

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**Content Feed**

Solved

Odd times 3

Given a input matrix x, multiply all odd values by 3. Even values remain the same. example: x = [1 2 3 4 5;... 6 7...

21 days ago

Solved

Odd times even numbers in a matrix

First count the number of odd numbers in x, then the number of even. Return their product. example: x = [1 2] One odd ...

22 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...

22 days ago

Solved

Determine whether a number is a fibodiv number

The number 14 is a fibodiv number because you can divide it into 1 and 4, use those numbers as the seeds for a Fibonacci sequenc...

23 days ago

Solved

Small Riddle

Mr. Smith has two children. If the older child is a boy, what are the odds that the other child is also a boy?

28 days ago

Solved

For given xx,x, y vectors build spline of x and y and find yy values for xx vector.

For given xx,x, y vectors build spline of x and y and find yy values for xx vector. Example x = [ 1.0000 1.5000 2.00...

1 month ago

Solved

Set x value to each odd index of vector y.

Set x value to each odd index of vector y.

1 month ago

Solved

For given vectors x,y find coresponding spline coefficients.

For given vectors x,y find coresponding spline coefficients. Example x =[ -3 -2 0 2 3] y =[ 0 0 1 ...

1 month ago

Problem

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...

1 month ago | 0 | 5 solvers

Solved

Reindex a vector (★★)

(copy of Prob. 676) You are given two vectors of equal length. Vector N has numeric values (no Inf or NaN) while vector IDX h...

1 month ago

Solved

*Prime number check 2 (in construction)

Another way to see if a number is prime is to count the number of factors. For example, the number 4 has 2 factors, [ 2 4 ]...

1 month ago

Solved

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...

1 month ago

Solved

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...

1 month ago

Solved

Sort the prime numbers in each row of a matrix

Considering a 3x3 matrix A, sort the prime numbers of each row in ascending order. For exemple: input A=[5 8 2 4; ...

1 month ago

Solved

Generate a matrix as follows

write a Function that gives like the following for a random n: n=2 ans= [ 0 1 1 0] n=6 ans= [ 0 ...

1 month ago

Solved

Write script that gives matrix like the following example:)

if x=2; y=[2 1; 1 1] if x=4; y=[4 3 2 1 3 3 2 1 0 2 2 1 0 0 1 1] if x=5; y=[5 4 3 2 ...

1 month ago

Solved

Return a list sorted by number of occurrences

Given a vector x, return a vector y of the unique values in x sorted by the number of occurrences in x. Ties are resolved by a ...

1 month ago

Solved

Monte-Carlo integration

Write a function that estimates a d-dimensional integral to at least 1% relative precision. Inputs: * d: positive integer....

1 month ago

Solved

Make a Palindrome Number

Some numbers like 323 are palindromes. Other numbers like 124 are not. But look what happens when we add that number to a revers...

1 month ago

Solved

Combine the first and last names

MATLAB R2016 provides a rich set of functions to work with string arrays. In this problem, you will be given two string arrays o...

1 month ago

Solved

Hoax Numbers

A Hoax Number (OEIS A019506) is defined as a composite number, whose sum of digits is equal to the sum of digits of its distinct...

1 month ago

Solved

Which Prime

Given two prime numbers, specify the relation between them i.e. - 'Twin Prime', 'Cousin Prime', 'Sexy Prime' or 'None'

1 month ago

Solved

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.

1 month ago

Solved

Palindromic Prime

Palindromic Prime is a prime number that is also a palindromic number. (Wiki, OEIS) If given a monotonic series (increment=1) ...

1 month ago

Solved

3n + 1 Problem (a.k.a The Collatz Conjecture)

The 3n + 1 problem (a.k.a The Collatz Conjecture) Consider the following algorithm to generate a sequence of numbers. Start wit...

1 month ago

Solved

Draw a x-by-x matrix British flag (Euro 2020)

Draw a x-by-x matrix 'British flag' using '0' and '1'.(x is odd and bigger than 4) x = 5 answer = [0 0 1 0 0 ...

1 month ago

Solved

R2012b atan in Degrees

Return in degrees the atan result of inputs for all four quadrants. *Examples:* [x, y] Degrees 1 0 0 1 1 ...

1 month ago

Solved

Translate German decimals to English decimals

The string 'x = [2,5; 5,5; 4,3];' should return 'y = [2.5; 5.5; 4.3];'

1 month ago

Solved

SatCom #2: Gain of a circular 'dish' antenna

Satellite and Space Engineering - Problem #2 This is part of a series of problems looking at topics in satellite and space comm...

1 month ago