# Binbin Qi

### China University of Petroleum

Professional Interests: Machine Learning/ Math/ Geophysics

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**Content Feed**

Solved

make histogram

You probably know the function hist(x,n) to get the histogram. Now try to write the function yourself! For the cheaters wanting...

ungefär 4 timmar ago

Solved

A little bit of luck needed

This one may require a little bit of guess work, but it is possible. Hints: - The same solution might fail the tests once and ...

ungefär 4 timmar ago

Solved

ICFP2021 Hole-In-Wall: Calculate Score

The ICFP held its annual 3-day contest in July 2021 with Hole-In-Wall. Contest Specification. The contest folds the figure in R...

ungefär 6 timmar ago

Solved

Which Prime

Given two prime numbers, specify the relation between them i.e. - 'Twin Prime', 'Cousin Prime', 'Sexy Prime' or 'None'

ungefär 7 timmar ago

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Create array of all Distances between two Sets of Points

This Challenge is a subsection of Martian Pranks based on Tim's efficient Distance calculation between sets of points. Given Po...

en dag ago

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Sum the rows

Sum the rows of the given matrix. Example x = [ 1 2 3 4 ] y = [ 3 7 ]

20 dagar ago

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Plotting Practice

Plot cos(x) vs x as shown in the figure below. Include the appropriate title, x-label, and y-label. Note, it is case sensitive. ...

ungefär 2 månader ago

Equivalent of c++'s NULL or python' s None in MATLAB

I think you can use class.empty for null in matlab classdef A < handle properties empty = A.empty; end end...

ungefär 2 månader ago | 0

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Divisible by n, prime divisors (including powers)

For this problem, you will be provided an array of numbers (not necessarily in order). Return the array of numbers with only pri...

3 månader ago

Solved

Functionality 1

It's all about functionality. *Cheating is allowed but not required*

3 månader ago

Solved

Generate a matrix as follows

write a Function that gives like the following for a random n: n=2 ans= [ 0 1 1 0] n=6 ans= [ 0 ...

3 månader ago

Solved

Sort Except Zeros

Sort the numbers in a vector. But the position of zeros should not be changed. Example: sort_except_zeros( [5 3 0 0 2 4] ) == [...

5 månader ago

Solved

UICBioE240 problem 1.11

Store a series of numbers into a 4 by 4 matrix, starting with the first few positions going right and down, and leaving the rest...

6 månader ago

Solved

MATLAB Basics: Complex Conjugates

For a given complex number, x, return the complex conjugate, y.

7 månader ago

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MATLAB Basics: Complex Argument

For a given complex number, x, return the argument, y, in degrees.

7 månader ago

Solved

MATLAB Basics: Complex Numbers

For a given complex number, x, return the real and imaginary parts as a vector, y = [Real Imaginary].

7 månader ago

Solved

Matrix convolution

A certain convolution step involves an elementwise multipication between two 3x3 matrices and taking the resulting sum of the el...

7 månader ago

Solved

Matrix Indexing

Given a matrix A and scalars r,c,i, find the product of two elements, with the first element located at row r and column c (doub...

7 månader ago

Solved

Stacking vectors into a matrix

Given a 4x1 vector a, and a 2x2 matrix b, create a matrix M in which the first 2 rows are each identical to a and the last two r...

7 månader ago

Solved

Vector creation using colon operator

Create a vector y containing n uniformly spaced values between a and b, with a < b. Use the colon (:) operator.

7 månader ago

Solved

Vector creation using linspace

Create a vector y containing n uniformly spaced values between a and b, with a < b. Use linspace.

7 månader ago

Solved

Logarithmically spaced vector creation using logspace

Create a vector y containing n logarithmically spaced values between a and b, with a < b. Use the logspace operator.

7 månader ago

Solved

Logarithmically spaced vector creation using linspace

Create a vector y containing n logarithmically spaced values between a and b, with a < b. Avoid using logspace and use the linsp...

7 månader ago