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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...
12 years 前
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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...
12 years 前
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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...
12 years 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...
12 years 前
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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...
12 years 前
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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...
12 years 前
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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...
12 years 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...
12 years 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...
12 years 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...
12 years 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 ...
12 years 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...
12 years 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 ...
12 years 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.
13 years 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 ...
13 years 前
已解决
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...
13 years 前
已解决
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:...
13 years 前
提问
autorename if saved file already exist
is there an option in |save| (or any other function) which support automatic renaming if the filename already exists or do I nee...
13 years 前 | 2 个回答 | 0
2
个回答提问
could BytesAvailable in serial-comm be wrong?
I'm reading a three-channeled signal from the serial port (an emg signal at 240Hz, if you are curious). The problem it happens (...
13 years 前 | 0 个回答 | 0
0
个回答提问
neural network: warm-start simulation
Hi, profiling the simulation of a generic neural network I noticed that in the initialization part a great amount of time is spe...
13 years 前 | 1 个回答 | 0
1
个回答提问
net reusing
Hi, I'm creating a set of nets using a code more or less like this: net = patternnet(10); % net initialization % ... ...
13 years 前 | 3 个回答 | 1
3
个回答已回答
Neural Network Data division
after calling |train| you get as second input argument the training record |tr|. The attribute |testMask{1}| contains a matrix (...
Neural Network Data division
after calling |train| you get as second input argument the training record |tr|. The attribute |testMask{1}| contains a matrix (...
13 years 前 | 1
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