Reverse the vector
Reverse the vector elements.
Example:
Input x = [1,2,3,4,5,6,7,8,9]
Output y = [9,8,7,6,5,4,3,2,1]
6 years 前
提问
Find and extract lines from text file
Hi all.
I have a txt file which shows a surgery procedure step by step.
I need to find the lines with the information "New s...
Return unique values without sorting
If the input vector A is [42 1 1],
the output value B must be the unique values [42 1]
The *values of B are in the s...
Getting logical indexes
This is a basic MATLAB operation. It is for instructional purposes.
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Logical indexing works like this.
thresh = 4...
6 years 前
已解决
Replicate elements in vectors
Replicate each element of a row vector (with NaN) a constant number of times.
Examples
n=2, A=[1 2 3] -> [1 1 2 2 3 3]
...
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...
6 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:...
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...
6 years 前
已解决
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 ...
6 years 前
已解决
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...
6 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...
6 years 前
已解决
Y=X
Given an input variable x, output a variable y that is equal in value to x.
Example:
Input x = 1
Output y is 1
Inp...