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Carl Witthoft


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66 total contributions since 2015

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Answered
Obtaining all the indices of matached elements of one array in another
If your version of MATLAB isn't too old, look up help on intersect, to wit; [dat, idxa, idxb] = intersect(a,b,'stable')

21 jours ago | 0

Submitted


Replacement for CLEAR to avoid destructive behavior
this clear.m ensures you'll never accidentally type "clear" or "clear all" and wipe your workspace.

6 mois ago | 0 downloads |

Answered
How to set legend marker size
Best way: see Stackoverflow question 2871747 % thanks to , Luis Mendo and Lea [~, objh] = legend({'one plot', 'another plot'...

6 mois ago | 1

Question


Why is text() unable to orient output in 3 axes?
text(x,y,z,string,'rotation',theta) is only capable of rotating about one axis, and even more annoyingly the text rotates on its...

presque 2 ans ago | 1 answer | 0

1

answer

Submitted


why(varargin)
Enhanced version of MATLAB: base:why

plus de 2 ans ago | 0 downloads |

Submitted


fitconicsections package
Fit data to conic section curves

presque 3 ans ago | 3 downloads |

Submitted


clplot( x, y, cutval, cols, varargin )
Creates a line plot whose color depends on which 'slice' of the y-range the y-value falls into.

presque 4 ans ago | 0 downloads |

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Question


Why isn't strfind written to return a value in all cases?
A very common programming question (e.g. <http://www.mathworks.com/matlabcentral/answers/167892-why-does-the-absolutely-not-work...

presque 4 ans ago | 1 answer | 0

1

answer

Solved


Increment a number, given its digits
Take as input an array of digits (e.g. x = [1 2 3]) and output an array of digits that is that number "incremented" properly, (i...

presque 4 ans ago

Solved


Matrix of almost all zeros, except for main diagonal
Write a program to input an integer n and build a n-by-n matrix with the numbers 1,2,...,n on the main diagonal and zeros elsewh...

presque 4 ans ago

Solved


Knight's Tour Checker
Given a matrix a, determine whether or not a legal <http://en.wikipedia.org/wiki/Knight's_tour knight's tour> is present. The kn...

presque 4 ans ago

Solved


Create an array (n,n) where only diagonal elements are '1' and others are '0'
Create an array (n,n) where only diagonal elements are '1' and others are '0' EX: n = 3; then Resultant array would be [ 1 0...

presque 4 ans ago

Solved


Sum my indices
Given inputs M and N (in that order), output an MxN matrix whose entries are equal to the sum of their indices. Example input...

presque 4 ans ago

Solved


Small aircraft weight limit
Write an if-else statement that evaluates to true if the sum of passengerWeight and cargoWeight is less than or equal maxWeight....

presque 4 ans ago

Solved


Remove the vowels
Remove all the vowels in the given phrase. Example: Input s1 = 'Jack and Jill went up the hill' Output s2 is 'Jck nd Jll wn...

presque 4 ans ago

Solved


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...

presque 4 ans ago

Solved


Writing a while loop
Write a while loop that continues to increment userValue by 5 until userValue is less than 0.

presque 4 ans ago

Solved


Determine the full width at half max
Determine the full width at half max of a curve. The full width at half maximum (FWHM) is a parameter which is used for desc...

presque 4 ans ago

Solved


What's the missing interior angle?
I'm talking about polygons... The sum of the interior angles of a triangle is 180 degrees. The sum of the interior angles of a...

presque 4 ans ago

Solved


While loop: Summation
Write a while loop that assigns summedValue with the sum of all values from 1 to userNum. Assume userNum is always greater than ...

presque 4 ans ago

Solved


Fibonacci sequence
Calculate the nth Fibonacci number. Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ... Examples: Inpu...

presque 4 ans ago

Solved


Find the two most distant points
Given a collection of points, return the indices of the rows that contain the two points most distant from one another. The inpu...

presque 4 ans ago

Solved


Make a checkerboard matrix
Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Example...

presque 4 ans ago

Solved


The Goldbach Conjecture, Part 2
The <http://en.wikipedia.org/wiki/Goldbach's_conjecture Goldbach conjecture> asserts that every even integer greater than 2 can ...

presque 4 ans ago

Submitted


fundy(x)
provides values for many fundamental physical constants

presque 4 ans ago | 0 downloads |

Solved


Column Removal
Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; and ...

presque 4 ans ago

Solved


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...

presque 4 ans ago

Solved


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 = ...

presque 4 ans ago

Solved


Swap the first and last columns
Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

presque 4 ans ago

Solved


Binary numbers
Given a positive, scalar integer n, create a (2^n)-by-n double-precision matrix containing the binary numbers from 0 through 2^n...

presque 4 ans ago

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