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# Zhengyi

### The University of Manchester

20 total contributions since 2012

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Distinguish uifigure from figure programmatically
TL;DR function val = isuifigure(h) val = ~isempty(matlab.ui.internal.dialog.DialogHelper.getFigureID(h)); end The slightly...

4 mois ago | 2

Submitted

getUniqueFileName(file, varargin)
GETUNIQUEFILENAME returns a unique file name if the supplied file name has been taken.

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...

plus d'un an ago

Solved

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. Examp...

plus d'un an ago

Solved

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

plus d'un an 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 ...

plus d'un an 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 ...

plus d'un an 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...

plus d'un an ago

Solved

Scoring for oriented dominoes
Given a list of ordered pairs, and the order they should be placed in a line, find the sum of the absolute values of the differe...

plus d'un an ago

Solved

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...

plus d'un an ago

Solved

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

plus d'un an 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 ...

plus d'un an ago

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

plus d'un an ago

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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...

plus d'un an ago

Solved

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:...

plus d'un an ago

Solved

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...

plus d'un an ago

Solved

Find the Area of a Polygon
Consider 2-D geometry and assume that the points are given in form of rows of a matrix. Find the area of polygon enclosed by the...

plus d'un an ago

Solved

Euclidean distance from a point to a polynomial
A not uncommon problem in the area of computational geometry is to find the closest point to a straight line from a given point,...

plus d'un an ago

Submitted

Bezier Curve/Patch Subdivision
Subdivision of a Bezier curve or a Bezier patch.