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CXD


TJU

Last seen: circa 2 mesi fa Attivo dal 2022

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Spoken Languages:
English
Professional Interests:
Mathematics and Optimization

Statistics

  • Matrix Manipulation II Master
  • Indexing II Master
  • Magic Numbers Master
  • Matrix Patterns III Master
  • Magic Numbers II Master
  • Draw Letters
  • Puzzler
  • Indexing I Master
  • Project Euler I
  • Scholar
  • CUP Challenge Master
  • Introduction to MATLAB Master

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Risolto


Crunch that matrix!
You are given an M x N matrix. Write a script that will compress this matrix into an M x (N/3) matrix, where each of the terms ...

circa 2 mesi fa

Risolto


Fill the matrix - 1
Input is a column vector and n. n columns will be added to the left of the input column. The first value of the row is the s...

circa 2 mesi fa

Risolto


Compound Interest: Interest Rate
Theorem : Compound Interest where, F : Future value at the end of n periods P : Present value r : Annual nominal rate n :...

circa 2 mesi fa

Risolto


Get Next Combination
Return next combination For example three-element combinations of 1:5 1 2 3 1 2 4 1 ...

circa 2 mesi fa

Risolto


Lunar Arithmetic (Multiplication)
<https://oeis.org/A087061 OEIS link for a description of lunar arithmetic> Simply take the larger digit when adding and take ...

circa 2 mesi fa

Risolto


Ordinary Annuity : Periodic Payment (Present Value)
Theorem : Present Value of an Ordinary Annuity where; P : Present value of all payments A : Periodic payment r : Interest ...

circa 2 mesi fa

Risolto


Ordinary Annuity : Present Value
Theorem : Present Value of an Ordinary Annuity where; P : Present value of all payments A : Periodic payment r : Interest ...

circa 2 mesi fa

Risolto


Sum Rows
Sum the same indexed (unique) rows. Examine the test suite. Related Challenge - <http://www.mathworks.com/matlabcentral/cody/...

circa 2 mesi fa

Risolto


Find MPG of Lightest Cars
The file |cars.mat| contains a table named |cars| with variables |Model|, |MPG|, |Horsepower|, |Weight|, and |Acceleration| for ...

circa 2 mesi fa

Risolto


Solving a quadratic equation
Given a, b ​​and c, Return the solution of the following quadratic equation: a*x^2 + b*x + c = 0.

circa 2 mesi fa

Risolto


Fun Race
* Given two unary functions foo and goo. * Check whether foo(0) runs faster than goo(0). * Output 1 if foo is faster, otherwis...

circa 2 mesi fa

Risolto


polar inertia
given locations of a set of unit masses on complex plane, find polar moment of inerta about the origin. for example output 4 if ...

circa 2 mesi fa

Risolto


Size of this cup?
The given vector has diameter of the cup in mm sampled at micrometer increments in depth from top to bottom, need output in cc a...

circa 2 mesi fa

Risolto


swap sign sum & multiply castles
* It is an easy problem, if you know the answer. * Given a square matrix of NxN ordinary numbers. * Initially place N identi...

circa 2 mesi fa

Risolto


Pernicious Anniversary Problem
Since Cody is 5 years old, it's pernicious. A <http://rosettacode.org/wiki/Pernicious_numbers Pernicious number> is an integer w...

circa 2 mesi fa

Risolto


Concatenate a successive power matrix in a column matrix
Generate F = [M1 M^2 ... M^p] with M a matrix, without using for.

circa 2 mesi fa

Risolto


Remove from a 2-D matrix all the rows that contain at least one element less than or equal to 4
Example: in = magic(5) in = 17 24 1 8 15 23 5 7 14 16 4 6 13 20 ...

circa 2 mesi fa

Risolto


Find the elements of a matrix according to a defined property.
From A = [5,2,3] and B = [1,2,3,4,5,6,7,8,9,10] produce a vector C where : C(1) is the sum of the first A(1) elements of B, ...

circa 2 mesi fa

Risolto


Area under the curve
Compute area under the curve specified by points stored in y, where y is in range (0,inf) and x time step is 1. note: please r...

circa 2 mesi fa

Risolto


Volume of Cylinder
Compute the Circumference of a Cylinder given it's radius and height.Here x is the radius and y is the height

circa 2 mesi fa

Risolto


calculate the tangent of angle in radians
Calculate the tangent of angle in degrees

circa 2 mesi fa

Risolto


Magnitude of a vector
Given a vector x, what is its magnitude?

circa 2 mesi fa

Risolto


Check capital letters
Check if each first letter of a string is a capital letter. for example: 'This Is Ok' gives a true answer and 'This Is not Ok' ...

circa 2 mesi fa

Risolto


Add the even numbers
Add only the even numbers of x example: x = [1 2 3 4 5] the positive numbers are: 2 4, so their sum is 6

circa 2 mesi fa

Risolto


Remove multiples of N
in the vector x remove all multiples of N. x = [1 2 3 4 5 6]; N = 2; Then y = [1 3 5];

circa 2 mesi fa

Risolto


Add the positive numbers
Add only the positive numbers of x example: x = [-2 -1 0 1 2 3] the positive numbers are: 1 2 3, so their sum is 6

circa 2 mesi fa

Risolto


Count the numbers
In a array x, count the number of times the number n appears in x. for example: x = [1 2 3 4 3 2 1 2] and n = 2 the answer sh...

circa 2 mesi fa

Risolto


Counting votes
x is a vector of votes, e.g. x=[1 2 3 2 2 1 3 2 1 2 2 2 2], who is the winner? 1,2,3?

circa 2 mesi fa

Risolto


Add the odd numbers
Add only the odd numbers of x example: x = [1 2 3 4 5] the positive numbers are: 1 3 5, so their sum is 9

circa 2 mesi fa

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