Return elements unique to either input
Given two numeric inputs a and b, return a row vector that contains the numbers found in only a or only b, but not both. For ex...
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...
Fill a zeros matrix
The aim is to fill an array of all zeros given a numerical value and the index of row and columns for this value.
3 Inputs:
...
4年以上 前
解決済み
intersection of matrices
Given two matrices filled with ones and zeros, determine if they share a common row, column entry. These matrices are of identi...
4年以上 前
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Remove the two elements next to NaN value
The aim is to *remove the two elements next to NaN values* inside a vector.
For example:
x = [6 10 5 8 9 NaN 23 9 7 3 21 ...
4年以上 前
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Specific Element Count
Given a vector _v_ and a element _e_, return the number of occurrences of _e_ in _v_.
Note: NaNs are equal and there may be n...
4年以上 前
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Check if number exists in vector
Return 1 if number _a_ exists in vector _b_ otherwise return 0.
a = 3;
b = [1,2,4];
Returns 0.
a = 3;
b = [1,...
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...
4年以上 前
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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]
...
4年以上 前
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Getting the indices from a matrix
Inspired by Problem 645.
Getting the indices from a matrix.
Given a matrix A (or a vector), return the indices (always in row...
4年以上 前
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First non-zero element in each column
For a given matrix, calculate the index of the first non-zero element in each column. Assuming a column with all elements zero i...
Can we make a triangle?
Given three positive number, check whether a triangle can be made with these sides length or not. remember that in a triangle su...
Height of a right-angled triangle
Given numbers a, b and c, find the height of the right angled triangle with sides a and b and hypotenuse c, for the base c. If a...
4年以上 前
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Is the Point in a Triangle?
Check whether a point or multiple points is/are in a triangle with three corners
Points = [x, y];
Triangle = [x1, y1; x...