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Getting the absolute index from a matrix
This is a basic MATLAB operation. It is for instructional purposes. --- You may already know how to get the <http://www.ma...

mehr als 11 Jahre vor

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Least common multiple of many numbers
1:6 -> 60

mehr als 11 Jahre vor

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Reindex a vector
You are given two vectors of equal length. Vector N has numeric values (no Inf or NaN) while vector IDX has integers. Place th...

mehr als 11 Jahre vor

Gelöst

Who invented zero?
We know the importance zero in computer science, mathematics... but who invented zero? Clue: He was the first in the line ...

mehr als 11 Jahre vor

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Celcius to Kelvin
Convert Celsius degrees to Kelvin temperature.

mehr als 11 Jahre vor

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Find out missing number from a vector of 9 elements
You are given a vector of size 9, x = [x1 x2 x3 x4 x5 x6 x7 x8 x9] Elements of x may be randomly selected without repeati...

mehr als 11 Jahre vor

Gelöst

Equal to their cube
Tell me three real numbers that are equal to their cubes?

mehr als 11 Jahre vor

Gelöst

What's Your BMI?
Find the body mass index. For reference, please refer to Wikipedia here: <http://en.wikipedia.org/wiki/Body_mass_index body ...

mehr als 11 Jahre vor

Gelöst

Maximum value in a matrix
Find the maximum value in the given matrix. For example, if A = [1 2 3; 4 7 8; 0 9 1]; then the answer is 9.

mehr als 11 Jahre vor

Gelöst

Getting the row and column location from a matrix
This is a basic MATLAB operation. It is for instructional purposes. --- You may already know how to get <http://www.mathwo...

mehr als 11 Jahre vor

Gelöst

Create a cell array out of a struct
Create a cell array out of a (single) struct with the fieldname in the first column and the value in the second column: in: ...

mehr als 11 Jahre vor

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Basics: 'Find the eigenvalues of given matrix
Find the eigenvalues y for a given matrix x.

mehr als 11 Jahre vor

Gelöst

Back to basics 16 - byte order
Covering some basic topics I haven't seen elsewhere on Cody. Switch the byte order of the input (i.e. if little-endian -> big...

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Back to basics 19 - character types
Covering some basic topics I haven't seen elsewhere on Cody. Return the number of punctuation characters in the input variabl...

mehr als 11 Jahre vor

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Number of toolboxes?
Return a number equal to the number of toolboxes available to the Cody solvers.

mehr als 11 Jahre vor

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Project Euler: Problem 16, Sums of Digits of Powers of Two
2^15 = 32768 and the sum of its digits is 3 + 2 + 7 + 6 + 8 = 26. What is the sum of the digits of the number 2^N? Thanks ...

mehr als 11 Jahre vor

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Project Euler: Problem 3, Largest prime factor
The prime factors of 13195 are 5, 7, 13 and 29. What is the largest prime factor of the number being input, input might be ui...

fast 12 Jahre vor

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Square Digits Number Chain Terminal Value (Inspired by Project Euler Problem 92)
Given a number _n_, return the terminal value of the number chain formed by summing the square of the digits. According to the P...

fast 12 Jahre vor

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Project Euler: Problem 4, Palindromic numbers
A palindromic number reads the same both ways. The largest palindrome made from the product of two 2-digit numbers is 9009 = 91 ...

fast 12 Jahre vor

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Project Euler: Problem 9, Pythagorean numbers
A Pythagorean triplet is a set of three natural numbers, a b c, for which, a^2 + b^2 = c^2 For example, 3^2 + 4^2 =...

fast 12 Jahre vor

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Project Euler: Problem 8, Find largest product in a large string of numbers
Find the greatest product of five consecutive digits in an n-digit number. 73167176531330624919225119674426574742355349194934...

fast 12 Jahre vor

Gelöst

Number of Circles in a Number
Given a number, return the number of closed 'circles' in the base 10 numerical representation. Note: the number 4 has no circ...

fast 12 Jahre vor

Gelöst

Determine the number of odd integers in a vector
Determine the number of unique odd integers in a vector. Examples: Input x = [2 5 8 3 7 1]; Output y = 4; Inp...

fast 12 Jahre vor

Gelöst

Project Euler: Problem 5, Smallest multiple
2520 is the smallest number that can be divided by each of the numbers from 1 to 10 without any remainder. What is the smalle...

fast 12 Jahre vor

Problem

Filter British English into American English
Given a sentence written with British spelling, return the sentence with the offending word(s) replaced with the American spelli...

fast 12 Jahre vor | 3 | 31 Lösungsvorschläge

Problem

Whole Number Un-Concatenator
Write a function that accepts an integer and an index digit and returns a vector containing two integers which are the leading a...

fast 12 Jahre vor | 0 | 77 Lösungsvorschläge

Problem

Airline Ticket Mod7 Checksum
There are 13 digits in an airline ticket number. If an airline ticket number is valid, the 13th digit should be the remainder of...

fast 12 Jahre vor | 3 | 86 Lösungsvorschläge

Problem

Whole Number Concatenator
Write a function that concatenates whole numbers. For example: numcat(111,222) should return 111222 numcat(1,2,3,4,5) s...

fast 12 Jahre vor | 1 | 83 Lösungsvorschläge

Problem

Distance between two GPS Coordinates
A problem that arises when performing geographically weighted regression is determining the distance between GPS coordinates. GI...

fast 12 Jahre vor | 2 | 38 Lösungsvorschläge

Problem

Unusual Concatenations
The sum of the squares of certain unusual integers is equal to the concatenation of their individual digits. For example: ...

fast 12 Jahre vor | 2 | 39 Lösungsvorschläge