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Tim


Last seen: Today Active since 2012

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  • Computational Geometry II Master
  • Number Manipulation II Master
  • Computational Geometry IV Master
  • Number Manipulation I Master
  • Project Euler I
  • Introduction to MATLAB Master
  • Community Group Solver
  • Matrix Manipulation III Master
  • Matrix Manipulation II Master
  • Computational Geometry I Master

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Easy Sequences 72: Complete Graph
In Graph Theory, we say a graph is a Complete Graph, if all of its nodes are connected to evey other nodes in the graph. Example...

5 days ago

Solved


Measure the hydraulic conductivity with a constant-head permeameter
A constant-head permeameter is a device for measuring the hydraulic conductivity of a soil sample. In this problem the sample i...

8 days ago

Solved


Find out if Quadratic Equation has real roots or not?
Input [a b c] ax^2+bx+c=0 Output [1 or 0] 1= Quadratic Equation has real roots 0= Quadratic Equation has real roots

10 days ago

Solved


AZPC Oddly Triangular: N=10/11/13/14 Digits 3/7/9 Part 3 of 5
AZPC created the Oddly Triangular contest on 9/7/22. The challenge is to find the longest sequence of N odd digits such that sum...

11 days ago

Solved


AZPC Oddly Triangular: N=35/305 using Digits 3/7/9 Part 5 of 5
AZPC created the Oddly Triangular contest on 9/7/22. The challenge is to find the longest sequence of N odd digits such that sum...

13 days ago

Solved


AZPC Oddly Triangular: N=34/304 using Digits 3/7/9 Part 4 of 5
AZPC created the Oddly Triangular contest on 9/7/22. The challenge is to find the longest sequence of N odd digits such that sum...

13 days ago

Solved


AZPC Oddly Triangular: N=8/9 Digits 3/7/9 Part 2 of 5
AZPC created the Oddly Triangular contest on 9/7/22. The challenge is to find the longest sequence of N odd digits such that sum...

13 days ago

Solved


AZPC Oddly Triangular: Small N Part 1 of 5
AZPC created the Oddly Triangular contest on 9/7/22. The challenge is to find the longest sequence of N odd digits such that sum...

13 days ago

Solved


Ambiguous concatenation
Give two expressions that can have different meaning inside/outside a concatenation expression.

14 days ago

Solved


Rotation Matrix to Euler Angles
Given a rotation matrix, generate the Euler Angles as output [phi,theta,psi]. [phi is a rotation around X-axis, theta is rotatio...

15 days ago

Solved


Fun with matrix
Design a sample matrix as given in the test cases

15 days ago

Solved


Easy Sequences 71: A Nonlinear Function with Quadratic Domain
Consider the function: The outputs of this function are fed as domain to another function: ...

16 days ago

Solved


Quaternions to Rotation Matrices
Given a matrix of Quaternions (along the rows), output a 3D matrix of Rotation Matrices.

19 days ago

Solved


Easy Sequences 70: Inflection Points of Binomial Product Function
Inflection points are points along the graph curve of a function, where the curvature of the curve changes from concave to conve...

21 days ago

Solved


Easy Sequences 69: Radix Economy of Factorials
The Radix Economy of a number in a particular base is the number of digits needed to express it in that base, multiplied by the ...

24 days ago

Solved


Convert a given Character to its decimal equivalent value
Convert a given character to its decimal equivalent value according to the ascii table. if x = '!'; y = 33; if x = 'u'; ...

24 days ago

Solved


Magical Land
Mother Earth has gifted humanity a magical land to help all life on earth, in the shape of a n-sided regular polygon. You, bein...

1 month ago

Solved


Which Char Array has the greater decimal value
Given to character arrays, determine which array has the greater decimal value. 'Hello' --> 72 + 101 + 108 + 108 + 111 = 500 ...

1 month ago

Solved


Generate Bernoulli polynomials
The Bernoulli polynomial is a polynomial of order with the properties that and for , where the prime denotes differentiat...

1 month ago

Solved


increasing sequences
Given a string of digits, insert commas to create a sequence of strictly increasing numbers so as to minimize the magnitude of t...

1 month ago

Solved


Number of leaps in binary search
Binary search is one of the most popular searching algorithms (Binary Search Algorithm). It works only in a sorted array. It uti...

1 month ago

Solved


Chain multiplication - 04
Following up on the problem in 55305, you found the optimal way to multiply a chain of matrices. However, here in this problem,...

1 month ago

Solved


Chain multiplication - 03
Following up the problem in 55305, you found the minimum number of multiplications needed to multiply a chain of matrices. In ...

1 month ago

Solved


Chain multiplication - 02
Following up on the problem in 55295, you found the number of multiplications needed to multiply two matrices. Now, you are giv...

1 month ago

Solved


Cut the rod
A rod of length n can be cut in different sizes. Different price is associated with different length of cuts. length, len= [1,...

1 month ago

Solved


Sort Non-zeros
Consider 0s in a vector creates a break-point. sort all the sub-arrays created by those break points. For example, a = [3, 4, 1...

1 month ago

Solved


Chain multiplication - 01
Say, you are given two matrices - A (shape= 3*4) and B(shape = 4*5). If you multiply these two matrices, the resultant matrix w...

1 month ago

Solved


Count estrangements
Recently I made a puzzle for my wife that included a cryptogram, which involves an arrangement of the letters A through Z. I use...

2 months ago

Solved


Determine whether one vector is a subset of another
While bumbling through a pair of problems in the Number Theory group, I wrote code to determine whether a vector is a subset of ...

2 months ago

Solved


Cyclotomic polynomial
Given a Natural number (N), return the corresponding Cyclotomic Polynomial.

2 months ago

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