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Laura Proctor


MathWorks

183 total contributions since 2011

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multiplotyyy
MULTIPLOTYYY allows the user to plot multiple lines on three sets of y-axes.

etwa 4 Jahre ago | 26 downloads |

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Solved


Connect blocks in a model
Connect the blocks in the model to produce the following signal: <<http://blogs.mathworks.com/images/seth/cody/connect-blocks...

fast 5 Jahre ago

Solved


Return the 3n+1 sequence for n
A Collatz sequence is the sequence where, for a given number n, the next number in the sequence is either n/2 if the number is e...

mehr als 5 Jahre ago

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Back and Forth Rows
Given a number n, create an n-by-n matrix in which the integers from 1 to n^2 wind back and forth along the rows as shown in the...

mehr als 5 Jahre ago

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Target sorting
Sort the given list of numbers |a| according to how far away each element is from the target value |t|. The result should return...

mehr als 5 Jahre ago

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Summing digits
Given n, find the sum of the digits that make up 2^n. Example: Input n = 7 Output b = 11 since 2^7 = 128, and 1 + ...

mehr als 5 Jahre ago

Answered
Inverted pendulum using fuzzy logical controller
This <http://www.mathworks.com/help/fuzzy/build-your-own-fuzzy-simulink-models.html cart and pole simulation> may be a good exam...

mehr als 5 Jahre ago | 2

| accepted

Answered
Please, help to draw plot between
There seemed to be an issue with the dimensions of variables m and c. The following code shouldn't error. % wavread [m,...

fast 7 Jahre ago | 0

Answered
Problem using sscanf in picking out numbers from string.
The following code should give you results close to what you want: res = sscanf(str1,'%*[^0123456789]%d') The idea is th...

fast 7 Jahre ago | 1

| accepted

Solved


Getting the indices from a vector
This is a basic MATLAB operation. It is for instructional purposes. --- You may already know how to <http://www.mathworks....

etwa 7 Jahre ago

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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...

etwa 7 Jahre ago

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Check if sorted
Check if sorted. Example: Input x = [1 2 0] Output y is 0

etwa 7 Jahre ago

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Find the numeric mean of the prime numbers in a matrix.
There will always be at least one prime in the matrix. Example: Input in = [ 8 3 5 9 ] Output out is 4...

etwa 7 Jahre ago

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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...

etwa 7 Jahre ago

Solved


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...

etwa 7 Jahre ago

Solved


Weighted average
Given two lists of numbers, determine the weighted average. Example [1 2 3] and [10 15 20] should result in 33.333...

etwa 7 Jahre ago

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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...

etwa 7 Jahre 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...

etwa 7 Jahre ago

Solved


Determine whether a vector is monotonically increasing
Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

etwa 7 Jahre 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...

mehr als 7 Jahre ago

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Triangle Numbers
Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...

mehr als 7 Jahre ago

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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 7 Jahre ago

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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 ...

mehr als 7 Jahre ago

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Select every other element of a vector
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

mehr als 7 Jahre ago

Solved


Determine if input is odd
Given the input n, return true if n is odd or false if n is even.

mehr als 7 Jahre ago

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Add two numbers
Given a and b, return the sum a+b in c.

mehr als 7 Jahre ago

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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...

mehr als 7 Jahre ago

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Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

mehr als 7 Jahre ago

Solved


Is my wife right?
Regardless of input, output the string 'yes'.

mehr als 7 Jahre ago

Solved


Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

mehr als 7 Jahre ago

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