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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...

14年以上前

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

14年以上前

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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...

14年以上前

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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...

14年以上前

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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...

14年以上前

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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...

14年以上前

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

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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...

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

14年以上前

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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 ...

14年以上前

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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...

14年以上前

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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...

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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...

14年以上前

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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 ...

14年以上前

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

14年以上前

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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 ...

14年以上前

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

14年以上前

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Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

14年以上前

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Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

14年以上前

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Opening and writing into doc file
You will need to create a MATLAB COM object to be able to achieve this. See: <http://www.mathworks.co.uk/help/techdoc/mat...

14年以上前 | 0

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How to copy copy column with loop?
Using 'repmat' is also a possibility: A = [ 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8] out = [...

14年以上前 | 0

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Why "Model arguments can not be used in non-tunable expressions"? in Referenced Simulink Models?
It would appear as if you are indexing the parameter 'mfgz' based on model parameters. Indexing of this form is not allowed if y...

14年以上前 | 0

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rose diagram
The workaround I use to get the correct limits set on a polar plot is to simply draw a circle at your desired maximum, and set t...

14年以上前 | 1

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structuring element
See: doc zeros doc ones You can then add/subtract or reallocate these arrays to get what you need.

14年以上前 | 0

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How to display risetime of output response of my system in simulink?
Not entirely sure why you'd want to do this. But it is definitely possible - you should be able to do it with a combination of s...

14年以上前 | 0

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Log log plot
See: doc loglog

14年以上前 | 0

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How to draw a bar graph from cell array with different size length?
If you are going to pad out your arrays with zeros you don't even need to define it as a cell array, just use a matrix. Try t...

14年以上前 | 0

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How to check existence of worksheet in excel file
[A,B] = xlsfinfo('foofoo.xlsx'); sheetValid = any(strcmp(B, 'foo2'));

14年以上前 | 4

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problem of memory
Also ensure that if you are generating Matlab Figures (as an intermediate step) with the 'Visible' property set to false that yo...

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how to load .mat in GUI every time the GUI runs and the GUI connect to simulink model
You call add a call to load('alphabet.mat') within the Simulink model's InitFcn callback if the parameters are only needed by th...

14年以上前 | 1

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