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Number Puzzles - 004
Give an example of three distinct numbers greater than 10 whose both product and sum are palindromes. The answer is not unique a...

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Combination logic
Create an algorithm in MATLAB that calculate the combination for the given positive integers n and k as inputs. When k > n, the ...

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Find Missing Number
A little problem (inspired by CodeChef) for the coffee break. A friend give you an array of size n-1 integers and these int...

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Out-of-Place Elements Count
Determine the number of elements in a list of integers that are not in their original order after sorting the list in ascending ...

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Count me in
Count the number of occurrences of the second input in the first input Ex. x1 = 12344455511; x2 =2; output = 1 ...

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nxn matrix with elements from 1:n^2
input n defines the dimension of a square matrix to be filled from 1 to n^2 with 1 in upper left corner and n^2 in bottom right...

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Determine pressure altitude using field elevation and altimeter setting
Given an airfield's elevation in feet (ft) and the current altimeter setting in inches of mercury (inHg), calculate the pressure...

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find out eigenvector of matrix
find out eigenvector of matrix A =eye(3); Answer is [0 0 1; 0 1 0; 1 0 0];

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Matrix symmetry
Given a matrix A = [1 2 3; 4 5 6] Flip it horizontally and vertically to obtain a complete reversal of both rows and columns. ...

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Average of even-numbered columns
Given a vector, find the average of even-numbered columns. e.g x　=　[ 4 6 8 9 1 2 7 ] y =　( 6 + 9 + 2 ) / 3

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Distance Between Points
Being n the number of points (If n = 3 there would be 3 points: A, B and C). The distance between each pair of points increases...

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

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Determine the Anti-diagonal of a Magic Square
Determine the anti-diagonal (crossing from top right to lower left) of a magic square of size n. Examples If n = 3 y =...

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Distancia Vetores
Dados dois vetores a = (x1, y1) e b = (x2, y2). Calcule a distância entre os vetores e verifique se estão perto (distancia < 10)...

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Draw a triangle of ones
For any given n, return a matrix that includes a triangle of ones of height n: Example n = 3 output = [0,0,1,0,0 ...

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Palindrome Checker
Check to see if a given string is a palindrome (a word, phrase, or sequence that reads the same backward as forward). Output sh...

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Alternative Dimensions
Given a multidimensional matrix, transform the matrix so the dimensions are in the order given by variable ord. For example, giv...

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number play

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Total resistance of a network of resistors in series and parallel
What is the total resistance of a network of resistors in series and in parallel? A matrix R contains the resistances (in Ohm) ...

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I told you not separate me, but you did :( - ACDC
Given input vector, output it's DC and AC value Example: input = 0 1 -1 0 ac = 0 1 -1 0 dc = 0

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Add Even and Subtract Odd Numbers in an Array
For an input array, add all the even values and subtract the odd values. This final value is the output. E.g. input = [1 2 3 4...

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Construyendo matrices parte 2
Construye la siguiente matriz a partir de otros tres vectores/matrices. [ 1 8 15 3 3 3 3 2 9 16 3 3...

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Test
Answer the question and the correct answer write in vector. Only one answer is correct. 1a Yes 1b No 1c No 1d No ...

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Equal temperament - musical notes and frequency
Starting from 440Hz note (musical note A above middle C), create 13 notes, using twelve-tone equal temperament, in Herz units. ...

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Find the number of diagonals in a n sided polygon.
Find the number of diagonals in a n sided polygon.

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Get the side length by using the law of cosines.

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provide the numerical answer to these number questions...
return a row matrix containing the sorted numbers which answer the following questions: a) what is the first Knuth number to...

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Harmonic series counting
The function takes a positive limit as input, And counts how many terms must be summed in the harmonic series: 1/1, 1/2, 1/3, ...

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Number Puzzle - 059

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Number Puzzle - 086

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