Juan Gallego

Last seen: 2년 초과 전 | 2015년부터 활동

Followers: 0 Following: 0

통계

All

Feeds

질문

mldivide algorithm for an underdetermined system of equations
I'm trying to solve an underdetermined equation (one equation with two unknowns) as a system of the form: A * x = b Where A =...

거의 3년 전 | 답변 수: 1 | 0

1

답변

문제를 풀었습니다

Find a Pythagorean triple
Given four different positive numbers, a, b, c and d, provided in increasing order: a < b < c < d, find if any three of them com...

6년 초과 전

문제를 풀었습니다

Triangle sequence
A sequence of triangles is constructed in the following way: 1) the first triangle is Pythagoras' 3-4-5 triangle 2) the s...

6년 초과 전

문제를 풀었습니다

Find the largest value in the 3D matrix
Given a 3D matrix A, find the largest value. Example >> A = 1:9; >> A = reshape(A,[3 1 3]); >> islargest(A) a...

6년 초과 전

문제를 풀었습니다

Length of the hypotenuse
Given short sides of lengths a and b, calculate the length c of the hypotenuse of the right-angled triangle. <<http://upload....

거의 9년 전

문제를 풀었습니다

Extract leading non-zero digit
<http://en.wikipedia.org/wiki/Benford%27s_law Benford's Law> states that the distribution of leading digits is not random. This...

거의 9년 전

문제를 풀었습니다

Sums with Excluded Digits
Add all the integers from 1 to n in which the digit m does not appear. m will always be a single digit integer from 0 to 9. no...

거의 9년 전

문제를 풀었습니다

Is this triangle right-angled?
Given three positive numbers a, b, c, where c is the largest number, return *true* if the triangle with sides a, b and c is righ...

거의 9년 전

문제를 풀었습니다

Making change
Given an amount of currency, return a vector of this form: [100 50 20 10 5 2 1 0.5 0.25 0.1 0.05 0.01] Example: Input a = ...

거의 9년 전

문제를 풀었습니다

Summing Digits within Text
Given a string with text and digits, add all the numbers together. Examples: Input str = '4 and 20 blackbirds baked in a...

거의 9년 전

문제를 풀었습니다

QWERTY coordinates
Given a lowercase letter or a digit as input, return the row where that letter appears on a <http://en.wikipedia.org/wiki/Keyboa...

거의 9년 전

문제를 풀었습니다

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...

거의 9년 전

문제를 풀었습니다

Check if number exists in vector
Return 1 if number _a_ exists in vector _b_ otherwise return 0. a = 3; b = [1,2,4]; Returns 0. a = 3; b = [1,...

거의 9년 전

문제를 풀었습니다

Return the first and last character of a string
Return the first and last character of a string, concatenated together. If there is only one character in the string, the functi...

거의 9년 전

문제를 풀었습니다

surface of a spherical planet
you just discovered its circumference, that is the input.

거의 9년 전

문제를 풀었습니다

Right and wrong
Given a vector of lengths [a b c], determines whether a triangle with those sides lengths is a right triangle: <http://en.wikipe...

거의 9년 전

문제를 풀었습니다

Back to basics 6 - Column Vector
Covering some basic topics I haven't seen elsewhere on Cody. Given an input vector, output true or false whether it is a colu...

거의 9년 전

문제를 풀었습니다

Solve the Sudoku Row
*Description* A simple yet tedious task occurs near the end of most Sudoku-solving algorithms, computerized or manual. The ta...

거의 9년 전

문제를 풀었습니다

Find the sum of the elements in the "second" diagonal
Find the sum of the elements in the diagonal that starts at the top-right corner and ends at the bottom-left corner.

거의 9년 전

문제를 풀었습니다

Sum of diagonal of a square matrix
If x = [1 2 4; 3 4 5; 5 6 7] then y should be the sum of the diagonals of the matrix y = 1 + 4 + 7 = 12

거의 9년 전

문제를 풀었습니다

Which doors are open?
There are n doors in an alley. Initially they are all shut. You have been tasked to go down the alley n times, and open/shut the...

거의 9년 전

문제를 풀었습니다

Multielement indexing of a row array
The row array birthRateChina stores the China birth rate (per 1000 people) for years 2000 to 2012. Write a statement that create...

거의 9년 전

문제를 풀었습니다

Tell me the slope
Tell me the slope, given a vector with horizontal run first and vertical rise next. Example input: x = [10 2];

거의 9년 전

문제를 풀었습니다

Reverse Run-Length Encoder
Given a "counting sequence" vector x, construct the original sequence y. A counting sequence is formed by "counting" the entrie...

거의 9년 전

문제를 풀었습니다

Project Euler: Problem 1, Multiples of 3 and 5
If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23...

거의 9년 전

문제를 풀었습니다

Make one big string out of two smaller strings
If you have two small strings, like 'a' and 'b', return them put together like 'ab'. 'a' and 'b' => 'ab' For extra ...

거의 9년 전

문제를 풀었습니다

De-dupe
Remove all the redundant elements in a vector, but keep the first occurrence of each value in its original location. So if a =...

거의 9년 전

문제를 풀었습니다

Arrange Vector in descending order
If x=[0,3,4,2,1] then y=[4,3,2,1,0]

거의 9년 전

문제를 풀었습니다

Balanced number
Given a positive integer find whether it is a balanced number. For a balanced number the sum of first half of digits is equal to...

거의 9년 전

문제를 풀었습니다

Sorted highest to lowest?
Return 1 if the input is sorted from highest to lowest, 0 if not. Example: 1:7 -> 0 [7 5 2] -> 1

거의 9년 전

Juan Gallego

통계

Thankful Level 1

MATLAB Answers

Solver

Cody

Feeds

1