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Binbin Qi


China University of Petroleum

Last seen: 11 giorni ago Active since 2009

Professional Interests: Machine Learning/ Math/ Geophysics

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  • Cody 5th Anniversary Finisher
  • Triathlon Participant
  • Knowledgeable Level 2
  • Thankful Level 1
  • Logic
  • Computational Geometry I Master
  • Personal Best Downloads Level 1
  • First Review
  • Matrix Patterns II Master
  • Introduction to MATLAB Master
  • Community Group Solver
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Solved


MATLAB Basics: Complex Conjugates
For a given complex number, x, return the complex conjugate, y.

27 giorni ago

Solved


MATLAB Basics: Complex Argument
For a given complex number, x, return the argument, y, in degrees.

27 giorni ago

Solved


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

28 giorni ago

Solved


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

circa un mese 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...

circa un mese 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...

circa 2 mesi 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.

circa 2 mesi ago

Solved


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

circa 2 mesi 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.

circa 2 mesi 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...

circa 2 mesi ago

Solved


Right shift an array n times with constant space.
Right shift an array n times with constant space, that is, no extra array can be used. Right shift operation: Last element com...

circa 2 mesi ago

Solved


Function - Cylinder Surface Area
The goal

circa 2 mesi ago

Solved


Find the number of days in a given year
Given a year number (eg. 2000) as input, find how many days are there in the given year.

circa 2 mesi ago

Solved


Find the sum of the following series
A(n)=(n*(n-1)!)/(n-2)!

circa 2 mesi ago

Solved


Count unique orderings of vertices of a polygon
Cody Problem 2671 asks us to determine whether four points can be the corners of a rectangle. The points are not necessarily inp...

circa 2 mesi ago

Solved


Create the flag of Ramumbia
The little known nation of Ramumbia has a very simple flag. It is made up of vertical stripes, Red, Green, Blue, that are equall...

2 mesi ago

Solved


Sales Tax

2 mesi ago

Solved


Sum the Infinite Series II
For any x in the range 0 < x and x < 2*pi radians, find the sum of the following infinite series: c = 1 + 1/2*cos(x) + 1/2*3...

2 mesi ago

Solved


Count alternating permutations
In an alternating permutation of numbers 1 to n, the numbers are arranged so that they alternately increase and decrease. For ex...

2 mesi ago

Solved


Solve an ODE: equation A

2 mesi ago

Solved


Flip coins

2 mesi ago

Solved


Logic 11

3 mesi ago

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