Maria K
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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 ...
fast 4 Jahre vor
Frage
delete zeros from matrix
How do I delete all the columns that have zeros with a for loop? I tried reducing the number of columns by one in every iteratio...
fast 4 Jahre vor | 2 Antworten | 0
2
AntwortenGelöst
Duplicates
Write a function that accepts a cell array of strings and returns another cell array of strings *with only the duplicates* retai...
fast 4 Jahre vor
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Counting Sequence
Given a vector x, find the "counting sequence" y. A counting sequence is formed by "counting" the entries in a given sequence...
fast 4 Jahre vor
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Finding Perfect Squares
Given a vector of numbers, return true if one of the numbers is a square of one of the other numbers. Otherwise return false. E...
fast 4 Jahre vor
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Replace NaNs with the number that appears to its left in the row.
Replace NaNs with the number that appears to its left in the row. If there are more than one consecutive NaNs, they should all ...
fast 4 Jahre vor
Gelöst
The Goldbach Conjecture
The <http://en.wikipedia.org/wiki/Goldbach's_conjecture Goldbach conjecture> asserts that every even integer greater than 2 can ...
fast 4 Jahre vor
Gelöst
Remove any row in which a NaN appears
Given the matrix A, return B in which all the rows that have one or more <http://www.mathworks.com/help/techdoc/ref/nan.html NaN...
fast 4 Jahre vor
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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...
fast 4 Jahre vor
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Area of an Isoceles Triangle
An isosceles triangle has equal sides of length x and a base of length y. Find the area, A, of the triangle. <<http://upload...
fast 4 Jahre vor
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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...
fast 4 Jahre vor
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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....
fast 4 Jahre vor
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Side of an equilateral triangle
If an equilateral triangle has area A, then what is the length of each of its sides, x? <<http://upload.wikimedia.org/wikipe...
fast 4 Jahre vor
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Area of an equilateral triangle
Calculate the area of an equilateral triangle of side x. <<http://upload.wikimedia.org/wikipedia/commons/e/e0/Equilateral-tr...
fast 4 Jahre vor
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Side of a rhombus
If a rhombus has diagonals of length x and x+1, then what is the length of its side, y? <<http://upload.wikimedia.org/wikipe...
fast 4 Jahre vor
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Dimensions of a rectangle
The longer side of a rectangle is three times the length of the shorter side. If the length of the diagonal is x, find the width...
fast 4 Jahre vor
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Length of a short side
Calculate the length of the short side, a, of a right-angled triangle with hypotenuse of length c, and other short side of lengt...
fast 4 Jahre vor
Frage
Fibonacci even numbers. Code doesn't work for large numbers
I have writen a code to calculate for every d numbers all the fibonacci numbers that are even, but it doesn't seem to work for l...
fast 4 Jahre vor | 1 Antwort | 0
1
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Fibonacci-Sum of Squares
Given the Fibonacci sequence defined by the following recursive relation, * F(n) = F(n-1) + F(n-2) * where F(1) = 1 and F(1)...
fast 4 Jahre vor
Frage
add titles above distinct parts of graph
Hello! Does anyone know how to add titles above two parts of a graph and maybe also include hooks like the ones shown in the...
fast 6 Jahre vor | 1 Antwort | 0
1
AntwortFrage
bootstrap p-value
Hello! Does anyone know how to get a p-value using bootstrap? I have created a sample of 20 bootstrapped data and calculated...
fast 6 Jahre vor | 2 Antworten | 2
2
AntwortenFrage
test if gamma distribution is appropriate for my data
Hello! I have some data that i want to fit to a gamma distribution and get the goodness of fit. I used the following commands:...
etwa 6 Jahre vor | 1 Antwort | 0
1
AntwortFrage
fit gamma distribution in barchart
Hello, is anyone acquinted with fitting gamma distributions in binocular rivalry data? If you have some matlab code in mind that...
etwa 6 Jahre vor | 0 Antworten | 0
0
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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...
etwa 6 Jahre vor
Frage
replace cell array row with another cell array
Hello!! I have this cell array: trials = {'orientations', '-18', '-36', '-54', '-72', '-90', '-108' '-126' '-144' '-1...
etwa 6 Jahre vor | 1 Antwort | 0
1
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Most nonzero elements in row
Given the matrix a, return the index r of the row with the most nonzero elements. Assume there will always be exactly one row th...
mehr als 6 Jahre vor
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Sum all integers from 1 to 2^n
Given the number x, y must be the summation of all integers from 1 to 2^x. For instance if x=2 then y must be 1+2+3+4=10.
mehr als 6 Jahre vor
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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...
mehr als 6 Jahre vor
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Create times-tables
At one time or another, we all had to memorize boring times tables. 5 times 5 is 25. 5 times 6 is 30. 12 times 12 is way more th...
mehr als 6 Jahre vor
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Find all elements less than 0 or greater than 10 and replace them with NaN
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...
mehr als 6 Jahre vor