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Cheuk


Texas A&M University

Active since 2014

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Nuclear Engineering PhD Candidate, Center for Large Scale Scientific Simulations
Professional Interests: numerical methods, high-power computing, programming (Matlab, C++, Python), nuclear physics, radiation transport

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Solved


Remove any row in which a NaN appears
Given the matrix A, return B in which all the rows that have one or more <http://www.mathworks.com/help/techdoc/ref/nan.html NaN...

9 years ago

Solved


Finding Perfect Squares
Given a vector of numbers, return true if one of the numbers is a square of one of the other numbers. Otherwise return false. E...

9 years ago

Solved


Weighted average
Given two lists of numbers, determine the weighted average. Example [1 2 3] and [10 15 20] should result in 33.333...

9 years ago

Solved


Create times-tables
At one time or another, we all had to memorize boring times tables. 5 times 5 is 25. 5 times 6 is 30. 12 times 12 is way more th...

9 years ago

Solved


Fibonacci sequence
Calculate the nth Fibonacci number. Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ... Examples: Inpu...

9 years ago

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...

9 years ago

Solved


Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

9 years ago

Solved


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...

9 years 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. Example...

9 years ago

Solved


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 ...

9 years ago

Solved


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...

9 years ago

Solved


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

9 years ago

Solved


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 ...

9 years 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...

9 years ago

Solved


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

9 years ago

Solved


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

9 years 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 ...

9 years 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...

9 years 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:...

9 years ago

Submitted


1D Finite Element Method (FEM) Example
A 1D finite element method (FEM) example is provided to teach the basics of using FEM to solve PDEs.

9 years ago | 22 downloads |

Submitted


Gaussian Elimination with Pivoting Method
Function uses Gauss elimination with pivoting to solve a linear system in standard format.

9 years ago | 17 downloads |

Submitted


Compressed Row Storage (CRS) Successive Over-Relaxation (SOR) Method
Function uses Successive Over-Relaxation (SOR) method to solve a linear system in CRS format

9 years ago | 1 download |

Submitted


Compressed Row Storage (CRS) Gauss-Seidel Method
Function uses Gauss-Seidel method to solve a linear system in CRS format

9 years ago | 2 downloads |

Submitted


Compressed Row Storage (CRS) Jacobi Method
Function uses Jacobi method to solve a linear system in CRS format

9 years ago | 3 downloads |

Submitted


Jacobian-Free Newton-Krylov (JFNK) method
Function uses JFNK to solve a system of non-linear equations

9 years ago | 10 downloads |