Archin
I study numerical linear algebra and matrix equation!
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Solved
Amazing circle of numbers 1 to n
For given natural number n, create amazing circle of numbers 1 to n without a repeat. This circle is that the sum of any two ad...
6 mesi ago
Problem
Amazing circle of numbers 1 to n
For given natural number n, create amazing circle of numbers 1 to n without a repeat. This circle is that the sum of any two ad...
6 mesi ago | 1 | 4 solvers
Solved
MATLAB Basic: rounding II
Do rounding nearest integer. Example: -8.8, answer -9 +8.1 answer 8 +8.50 answer 9
6 mesi ago
Solved
Area of an equilateral triangle
Calculate the area of an equilateral triangle of side x. <<https://i.imgur.com/jlZDHhq.png>> Image courtesy of <http://up...
8 mesi ago
Solved
Converting binary to decimals
Convert binary to decimals. Example: 010111 = 23. 110000 = 48.
9 mesi ago
Solved
Is it a number?
Determine if input is numeric. If it is,output is 1; if it is not, output is 0.
9 mesi ago
Solved
Column norms of a matrix
Given a matrix M, return a vector y such that for each k y(k)=norm(M(:,k)) (y(k) is the Euclidean norm of the k-th col...
10 mesi ago
Solved
Is this triangle right-angled?
Given any three positive numbers a, b, c, return true if the triangle with sides a, b and c is right-angled. Otherwise, return f...
12 mesi ago
Solved
Draw a 'X'!
Given n as input Draw a 'X' in a n-by-n matrix. example: n=3 y=[1 0 1 0 1 0 1 0 1] n=4 y=[1 0 0...
12 mesi ago
Solved
Draw 'E'
Draw a x-by-x matrix 'E' using 1 and 0. (x is odd and bigger than 4) Example: x=5 ans= [1 1 1 1 1 1 0 0 0 0 ...
12 mesi ago
Solved
Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...
circa un anno ago
Solved
Who Has the Most Change?
You have a matrix for which each row is a person and the columns represent the number of quarters, nickels, dimes, and pennies t...
circa un anno ago
Solved
The Goldbach Conjecture
The <http://en.wikipedia.org/wiki/Goldbach's_conjecture Goldbach conjecture> asserts that every even integer greater than 2 can ...
circa un anno ago
Solved
Compute Fibonacci Number
Compute the _n_-th Fibonacci Number f(0) = 0, f(1) = 1, f(2) = 1, f(3) = 2, ... f(42) = 267914296
circa un anno ago
Solved
Rotate a Matrix by 90 degrees
Rotate a Matrix by 90 degrees Example: If the input is: X = 1 2 3 4 5 6 7 8 9 ...
circa un anno ago
Solved
The Hitchhiker's Guide to MATLAB
Output logical "true" if the input is the answer to life, the universe and everything. Otherwise, output logical "false".
circa un anno ago
Solved
Who is the smartest MATLAB programmer?
Who is the smartest MATLAB programmer? Examples: Input x = 'Is it Obama?' Output = 'Me!' Input x = 'Who ?' Ou...
circa un anno ago
Solved
Nearest Numbers
Given a row vector of numbers, find the indices of the two nearest numbers. Examples: [index1 index2] = nearestNumbers([2 5 3...
circa un anno ago
Solved
Find the nearest integer
Given a vector of integers and a real number find the closest integer. EX: >> a = [2 4 5 6 8 10]; >> b = 4.6; >> nea...
circa un anno ago
Solved
So many choices
For inputs _n_ and _k_ (in that order), output the number of ways that k objects can be chosen from amongst n distinct objects. ...
circa un anno ago
Solved
sum of non-primes
The sum of the non-primes no larger than 10 is 1+4+6+8+9+10=38 Find the sum of all the positive non-prime integers that do no...
circa un anno ago
Solved
Reverse the vector
Reverse the vector elements. Example: Input x = [1,2,3,4,5,6,7,8,9] Output y = [9,8,7,6,5,4,3,2,1]
circa un anno ago
Solved
MATLAB Basic: rounding
Do rounding near to zero Example: -8.8, answer -8 +8.1 answer 8
circa un anno ago
Solved
Vector creation
Create a vector using square brackets going from 1 to the given value x in steps on 1. Hint: use increment.
circa un anno ago
Solved
Doubling elements in a vector
Given the vector A, return B in which all numbers in A are doubling. So for: A = [ 1 5 8 ] then B = [ 1 1 5 ...
circa un anno ago
Solved
Flip the vector from right to left
Flip the vector from right to left. Examples x=[1:5], then y=[5 4 3 2 1] x=[1 4 6], then y=[6 4 1]; Request not ...
circa un anno ago
