Binbin Qi
China University of Petroleum
3 580 total contributions since 2009Professional Interests: Machine Learning/ Math/ Geophysics
Binbin Qi's Badges
Completed both Cody 5th anniversary groups
Awarded to Binbin Qi on 23 Dec 2017
15-year anniversary Triathlon participant badge
Awarded to Binbin Qi on 09 Nov 2016
15-year anniversary Scavenger Hunt finisher badge
Awarded to Binbin Qi on 09 Nov 2016
Accept 1 answer given by other contributors
Awarded to Binbin Qi on 20 Jul 2017
1 of your answers has been accepted
Awarded to Binbin Qi on 20 Jul 2017
Provide your first answer ever to someone else's question
Awarded to Binbin Qi on 20 Jul 2017
Receive 50 likes on a solution you have submitted
Awarded to Binbin Qi on 08 Nov 2018
Solve all the problems in Combinatorics I Master problem group
Awarded to Binbin Qi on 30 Oct 2018
Solve Project Euler problems using Matlab
Awarded to Binbin Qi on 11 Sep 2018
Solve all the problems in Draw Letters problem group
Awarded to Binbin Qi on 01 Aug 2018
Solve all the problems in Computation Geometry I
Awarded to Binbin Qi on 22 Jun 2018
Solve all the problems in Word Puzzles problem group
Awarded to Binbin Qi on 17 Jun 2018
Solve all the problems in Number Manipulation II problem group
Awarded to Binbin Qi on 23 May 2018
Solve all the problems in Magic Numbers II
Awarded to Binbin Qi on 23 May 2018
Solve all the problems in Indexing V
Awarded to Binbin Qi on 23 May 2018
Solved
Find The Difference
Vector x is given.calculate the difference between the biggest and the smallest number that we can create from elements of x. f...
ungefär 6 timmar ago
Solved
Kaggle: Reverse Game of Life - Create Isle prior State
<http://www.kaggle.com/c/conway-s-reverse-game-of-life Kaggle's Conway's Reverse Game of Life> contest inspires this Isle Single...
ungefär 7 timmar ago
Solved
Iccanobif numbers 1
There are a lot of problems in Cody that deal with Fibonacci numbers (1, 1, 2, 3, 5, 8, 13, 21 etc...) so let's turn things arou...
ungefär 11 timmar ago
Solved
Calculate the square of a number (Super Easy)
The goal is to calculate the square (y) of a number (x). Good way to start MatLab for beginners.
ungefär 11 timmar ago
Solved
Generate Convolution Matrix of 2D Kernel with Different Convolution Shapes (Full, Same, Valid)
In this problem the challenge is to build the Matrix Form equivalent of the function `conv2()` of MATLAB. The function to be ...
ungefär 13 timmar ago
Solved
Determine if input is odd or even
Determine if input is odd or even, sample problem
en dag ago
Solved
Twists in 2D
So far we have represented the pose of an object in the plane using a homogeneous transformation, a 3x3 matrix belonging to the ...
en dag ago
Solved
Composing relative poses in 2D: problem 1
We consider a world reference frame denoted by {0} which has its x-axis pointing east and its y-axis pointing north. There i...
en dag ago
Solved
Relative points in 2D: problem 3
The 2D pose of a robot, with respect to a world coordinate frame {O}, is described by a 3x3 homogenous transform matrix T. A la...
en dag ago
Solved
Relative points in 2D: problem 2
The 2D pose of a robot, with respect to a world coordinate frame {O}, is described by a 3x3 homogenous transform matrix T. A la...
en dag ago
Solved
Relative points in 2D: problem 1
The 2D pose of a robot, with respect to a world coordinate frame {O}, is described by a 3x3 homogenous transform matrix T. A la...
2 dagar ago
Solved
Relative pose in 2D: problem 3
The 2D pose of a robot, with respect to a world coordinate frame {O}, is described by a 3x3 homogenous transform matrix T. A la...
2 dagar ago
Solved
Relative pose in 2D: problem 1
We consider a world reference frame denoted by {0} which has its x-axis pointing east and its y-axis pointing north. There is a...
2 dagar ago
Solved
Method of Common Differences part-2
This is the inverse problem to <http://www.mathworks.com/matlabcentral/cody/problems/1485 Problem 1485>. Problem 1485 illustra...
3 dagar ago
Solved
Word Distance - Average Sort
Based on the method of <https://www.mathworks.com/matlabcentral/cody/problems/44815-word-distance-sum this problem>, write a fun...
9 dagar ago
Solved
Scalar Matrix Manipulation
Assume, input x is a scalar matrix such as, x = 2 0 0 0 2 0 0 0 2 th...
10 dagar ago
Solved
Calculate the dynamic time warping similarity
Dynamic time warping (DTW) is an algorithm for measuring the similarity between two time series that may have been acquired at d...
12 dagar ago
Solved
Graceful Double Wheel Graph
<http://en.wikipedia.org/wiki/Graceful_labeling Graceful Graphs> are the topic of the <http://www.azspcs.net/Contest/GracefulGra...
12 dagar ago
Solved
Relative pose in 2D: problem 2
We consider a world reference frame denoted by {0} which has its x-axis pointing east and its y-axis pointing north. There is a...
12 dagar ago
Solved
Wrecked Angles?
It's time for some simple geometry fun to start off the new year. You will be given the perimeter P and the area A of a recta...
13 dagar ago
Solved
Word Distance - Sum
Let's suppose that the distance of a word can be calculated by summing the differences between its letters, having assigned the ...
14 dagar ago
Solved
Add consecutive integer numbers
Given consecutive numbers, add the numbers *without using the sum command in MATLAB.*
14 dagar ago
Solved
Make a Pandiagonal Prime Magic Square: 11 x 11
This Fun with Primes Challenge is to create a Pandiagonal Prime Magic Square of size 11x11 given eleven APk sequences with 10 co...
15 dagar ago
Solved
Find the complement of a number in binary
Input x is a decimal number and output y is the complement of binary representation of x. For example, x = 10 has the binary ...
17 dagar ago
Solved
Binary code for an analog signal
Digitization of a signal consists of 3 stages: sampling, quantization and encoding. Sampling convert the analogue signal into...
24 dagar ago
Solved
Probability of winning single-elimination tournament
Find the probability that the p^{th} player will win a single-elimination tournament with 2^n players where M(i,j)=probability t...
25 dagar ago
Solved
Augmented Lagrange Multiplier (ALM) Method
Write a function to find the values of a design variable vector, _x_, that minimizes a scalar objective function, _f_ ( _x_ ), g...
25 dagar ago
Solved
Sequential Unconstrained Minimization (SUMT) using Interior Penalty
Write a function to find the values of a design variable vector, _x_, that minimizes a scalar objective function, _f_ ( _x_ ), g...
26 dagar ago
Solved
Legendre polynomials
Given an integer _n_ ≥ 0, generate the _n_-th <http://en.wikipedia.org/wiki/Legendre_polynomials Legendre polynomial>. *Ex...
ungefär en månad ago
Solved
Optimization of cylinder surface area
Optimization of a cylinder surface area. What are the best parameters (radius and height) to get the minimum cylinder surface a...
ungefär en månad ago