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Volume of Spherical Shell

In three-dimensional space, a spherical shell can be constructed from two concentric spheres. Determine the volume of a spheric...

20 jours ago

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Perimeter of a quadrilateral

There are four cars starting at a point. The first car points north, the second one points east, the third one points south, an...

20 jours ago

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An Ohm's Law Calculator

*BACKGROUND / MOTIVATION:* Many important observations in math and science can be described by short, but powerful, equations...

20 jours ago

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Combined Ages 4 - Non-symmetric with multiples, n ≥ 3

This problem is slightly more difficult than <http://www.mathworks.com/matlabcentral/cody/problems/42383-combined-ages-3-non-sym...

21 jours ago

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Combined Ages 3 - Non-symmetric, n ≥ 3

Pursuant to the previous two problems ( <http://www.mathworks.com/matlabcentral/cody/problems/42382-combined-ages-1-symmetric-n-...

21 jours ago

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Combined Ages 2 - Symmetric, n ≥ 3

Following on <http://www.mathworks.com/matlabcentral/cody/problems/42382-combined-ages-1-symmetric-n-3 Combined Ages 2>, you wil...

21 jours ago

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Combined Ages 1 - Symmetric, n = 3

You have probably seen the common riddle wherein combined ages are provided and you must determine the individual ages. For exam...

21 jours ago

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Rotate a matrix without using rot90

rotate the input square matrix by certain degrees (e.g. 270 or 450 etc.) without using rot90 or flip function. its an extension...

23 jours ago

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generate the matrix

given 3 inputs e.g [2,3,4] -- generate a matrix like below -- [2 2 0 0 0 0 0 0 0; 2 2 0 0 0 0 0 0 0; 0 0 3 3 3 0 0 0 0; 0 0...

23 jours ago

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How many Christmas presents under the tree?

For many families at Christmas, each family member gives 1 present to every other family member. The main exception is that chil...

23 jours ago

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Create a matrix from a cell

In this problem , you must convert a cell into a matrix and pad each cell with NaN. *Example 1:* If you have the input...

23 jours ago

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generate the matrix

given a value n (say 4) - generate the matrix like below y= [0 1 2 3 4; -1 0 1 2 ...

23 jours ago

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The length of the equal sides of an isoceles triangle is 'a'.For all the possible (integer) values of the remaining side,find the associated angles between the two equal sides.

the remaining side may have many possible values.only assume integer ones for simplicity.

23 jours ago

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String count

given a string 'str', count the number of the followings - * letters * digits * white space * capital letters * smal...

23 jours ago

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Question 1

Implement a function named q1 with one input argument named n. This function should return the multiplication of all odd numbers...

23 jours ago

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Count digits

Count total number of digits from 1 to n. * n=13 * output=17 since from [1-9] total 9 digits.[10-13] total 4*2=8 digits.

23 jours ago

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Matrix with different incremental runs

Given a vector of positive integers a = [ 3 2 4 ]; create the matrix where the *i* th column contains the vector *1:a(i)...

27 jours ago

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Pandigital number n°2 (Inspired by Project Euler 32)

After <http://www.mathworks.com/matlabcentral/cody/problems/2319 Problem 2319>. An n-digit number is pandigital if it makes u...

2 mois ago

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Pandigital number n°1 (Inspired by Project Euler 32)

A little warm-up to begin... An n-digit number is pandigital if it makes use of all the digits 1 to n exactly ONCE. For ex...

2 mois ago

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Convert decimal to binary and then generate the minimum binary it can with jumbling

input is 10 --> 1010 output should be 3 --> 0011 input 23 --> 10111 output should be 15 --> 01111

2 mois ago

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Gray code

Given a decimal number, convert it to its corresponding gray code. 8 -- 1100 ; 4 -- 110 ; 17-- 11001;

2 mois ago

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Check if a number belongs in the fibonacci squence

Test if integer i is a number in the fibonacci sequence. Return true if it is.

2 mois ago

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Quadratic equation

given three inputs (a, b, c) for the equation a*x^2+b*x+c=0; return 1 if the roots are complex (non zero imaginary), and 0 if th...

2 mois ago

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Check if number is a square number

Test if integer i is a square number. Return logical true if it is.

2 mois ago

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Check if integer is a prime number

Check if integer i is a prime number. Returns logical true '1' if it is.

2 mois ago

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Scalar Matrix Manipulation

Assume, input x is a scalar matrix such as, x = 2 0 0 0 2 0 0 0 2 th...

3 mois ago

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Cody problems in French : Trouvez la logique Pt.2

Trouvez la logique entre x et y, aidez-vous de la test suite. Bon courage. P.S: L'utilisation de "^" est de nouveau fortement...

3 mois ago

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Get the mean digit

Write a function that gives the mean digit (round towards nearest integer) of an input and positive number. For example: x ...

3 mois ago

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Say type of roots in quadratic equation

Given the coefficients of a quadratic equation, write a function that gives the output y='RealDifferent' if the roots are real a...

3 mois ago

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Get the value 100

Knowing that 123-45-67+89=100, write a function that gives this result for any order of the digits in the input. Otherwise, the ...

3 mois ago