# William

Semi-retired physicist with interests in numerical modeling and mathematics.

**Statistics**

RANK**914**

of 247 115

REPUTATION**56**

CONTRIBUTIONS

**0** Questions

**35** Answers

ANSWER ACCEPTANCE **
0.00%
**

VOTES RECEIVED**9**

RANK

of 17 228

REPUTATION**N/A**

AVERAGE RATING**0.00**

CONTRIBUTIONS**0** Files

DOWNLOADS **0**

ALL TIME DOWNLOADS**0**

CONTRIBUTIONS**0 Posts**

CONTRIBUTIONS**0** Public Channels

AVERAGE RATING

CONTRIBUTIONS**0** Highlights

AVERAGE NO. OF LIKES

**Content Feed**

Solved

AVIRIS Hyperspectral Bit Mask

The AVIRIS data sometimes is provided uncropped. This creates edge regions with values of "-50". Shown is AVIRIS Moffett Field i...

2 dagar 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...

2 dagar ago

Solved

Easy Sequences 51: Positive Gaussian Primes

A Gaussian Prime is a gaussian integer that cannot be decomposed as product of two non-unit gaussian integers (the complex units...

6 dagar ago

Solved

Easy Sequences 53: Greatest Proper Divisor

The greatest proper divisor () of an integer is the largest integer , such that and . Furthermore, we define: . Below is the...

7 dagar ago

Solved

Easy Sequences 52: Non-squarable Rectangles

Any integer-sided rectangle can be cut into unit rectangles () and rearranged into sets of smaller rectangles. For example the ...

9 dagar ago

Solved

Flip the diagonal values

Write a program that flip the elements of main diagonal , upper and lower diagonal values of a sqare matrix. For example if a ...

9 dagar ago

Solved

Easy Sequences 50: Blocked Gaussian Integers

A Gaussian Integer is a complex number whose real and imaginary parts are both integers. A gaussian integer is said to be bloc...

13 dagar ago

Solved

Easy Sequences 49: Prime Little Omega Function

For an integer , the prime little omega function, , is defined as the total number of distinct prime factors of . So, if , sinc...

14 dagar ago

Solved

Amazing circle of numbers 1 to n

For given natural number n, create amazing circle of numbers 1 to n without a repeat. This circle is that the sum of any two ad...

15 dagar ago

Solved

Given the radius of a sphere r, output its volume V

A sphere has radius r. Determine its volume V.

17 dagar ago

Solved

Truncate the input value

Given an input x, truncate the value to obtain y. example: x = 5.252 y = 5

18 dagar ago

Solved

Siren frequency and Doppler effect.

The Doppler effect is described on OpenStax University Physics at https://openstax.org/books/university-physics-volume-1/pages/1...

20 dagar ago

Solved

Easy Sequences 47: Boxes with Prime Edges

This is related to problem "Easy Sequences 41: Boxes with Integer Edges". However, here we will be investigating a smaller-sized...

24 dagar ago

Solved

A sequence of Ones

You are given number(s) with all digits - 1. Your answer will depend on the count of 1 in the given number, for example - x1...

24 dagar ago

Solved

Easy Sequences 48: Prime Big Omega of Factorial Sequence

For an integer , the prime big omega function, , is defined as the total number prime factors of . So, if , since , therefore ....

26 dagar ago

Solved

Easy Sequences 22: Sum of Proper Fractions

Let 'F' be the set of all proper fractions in lowest term, whose denominator is less than or equal 'd'. So, for d = 10, we have:...

ungefär en månad ago

Solved

Easy Sequences 43: Least Common Fibonacci Number

The Fibonacci sequence is a series whose elements are numbers starting with and , and subsequent Fibonacci numbers are defined...

ungefär en månad ago

Solved

Easy Sequences 45: Second Derivative of Inverse Polynomial Function

The inverse of a function, is the function , that reverses . That means that if , then . For example, the function to convert ce...

ungefär en månad ago

Solved

Easy Sequences 44: Finding the Smallest Number whose Cube is divisible by a Factorial

Given a integer , our goal is to find the smallest integer , such that divides . For example, for , , because , (since ), and ...

ungefär en månad ago

Solved

Easy Sequences 41: Boxes with Integer Edges

For this problem, we are asked to write a function that will count the number of boxes with integer edges, that has the same giv...

ungefär 2 månader ago

Solved

Easy Sequences 39: Perfect Squares in Pascal's Triangle

Consider the 2nd, 3rd and 4th diagonals of the Pascal's Triangle, shown highlighted below: ...

ungefär 2 månader ago

Solved

Easy Sequences 40: Quadratic Congruence

Quadratic Congruence is a modular equation of the form: . In this exercise you will be given a vector containing the coefficie...

ungefär 2 månader ago

Solved

Compute the largest number whose prime factors sum to n

This problem deals with a sequence whose tenth term is 36 because the prime factors of 36 (2, 2, 3, 3) sum to 10. The number 32 ...

ungefär 2 månader ago

Solved

List the cuban primes

The number 61 is a cuban prime because it is prime and the difference two cubes, 64 and 125. Write a function to list the cuba...

ungefär 2 månader ago

Solved

Easy Sequences 35: Cutting a donut to Semi-prime pieces

The figure below illustrates how a torus (donut shape) can be cut in pieces with only cuts: ...

ungefär 2 månader ago