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Tax Calculator

Calculate the tax for a given income. 10% tax is paid for any income up to $2,000. 20% tax is paid for additional income u...

1 year ago

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Volume of a Simplex

Return the volume of a <http://en.wikipedia.org/wiki/Simplex regular _n_-simplex> with a unit side length. Results are up to...

2 years ago

Solved

Volume difference between Ellipsoid and Sphere

Given an ellipsoid of semi principal axis (a,b,c) find the volume of the difference between this ellipsoid and the sphere with...

2 years ago

Solved

Create Volcano (or Atoll) martix. It is an extension of Bullseye matrix problem.

For example, if n=2 (maximum value), the output matrix should be [1 1 1 1 1; 1 2 2 2 1; 1 2 1 2 1; 1 2 2 2 1; 1...

2 years ago

Solved

Mirror Image matrix across anti-diagonal

Given an input number x, create a mirror image matrix 'Y' across the anti-diagonal. For example, if x=3, Y = [1 2 3; ...

2 years ago

Solved

Make a Star Pyramid

Create a star pyramid. First line will have 1 star, second will have two stars and so on... a basic program which is easily done...

2 years ago

Solved

Make a logical diamond using GALLERY function

Inspired from <http://www.mathworks.com/matlabcentral/cody/problems/1078-make-a-diamond Problem 1078. Make a diamond> In thi...

2 years ago

Solved

Matrix spiral

Make a spiral in a (n*n) matrix. The spiral has to start in the top left, and has to rotate clockwise to the center. The spiral ...

2 years ago

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Spiral In

Create an m by n matrix filled with sequential integers starting from 1 and arranged in a counterclockwise spiral that hugs the ...

2 years ago

Solved

Twist 'n' Match

Given n and m, construct an n-by-n matrix a such that a, when rotated 90 degrees and compared with itself, matches itself in exa...

2 years ago

Solved

Spot the rectangle (Part 2)

This problem is related to the <http://bit-player.org/2009/the-17x17-challenge 17x17 challenge>. See also <http://www.mathworks....

2 years ago

Solved

Create a patchwork matrix

This function will assemble a large matrix out of a number of smaller ones m1, m2, etc., according to a pattern P. If P is 3x5,...

2 years ago

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Spot the rectangle

This problem is related to the <http://bit-player.org/2009/the-17x17-challenge 17x17 challenge>. Given a matrix filled with ones...

2 years ago

Solved

Pascal's Matrix

Given an integer n ≥ 0, generate the ( _n_+1) × ( _n_+1) lower triangular <http://en.wikipedia.org/wiki/Pascal_matrix P...

2 years ago

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Power supply: 230V to 115V

The problem is simple: we have a wall outlet which supplies 230V and an apparatus that requires 115V. Software is always chea...

2 years ago

Solved

Clipper Function

Create a function that emulates a clipper circuit Given sin wave, t and the constant value for clipping, and the direction to re...

2 years ago

Solved

An asteroid and a spacecraft

🚀 Imagine a non-relativistic simple situation. Assume positions p0, p1, p2, and p3 are three dimensional Cartesian ...

2 years ago

Solved

I Plead the Fifth

Write a function to provide a yes or no answer to the input string. However, it must plead the 5th amendment (return an empty st...

2 years ago

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The Glass Half Full

Identical glasses are placed in a triangular tower structure, such that the top level (L = 1) comprises one glass, the next leve...

2 years ago

Solved

Polarisation

You have n polarising filters stacked one on top of another, and you know each axis angle. How much light gets passed through th...

2 years ago

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Is this is a Tic Tac Toe X Win?

For the game of <https://en.wikipedia.org/wiki/Tic-tac-toe Tic Tac Toe> we will be storing the state of the game in a matrix M. ...

2 years ago

Solved

Predicting life and death of a memory-less light bulb

*💡 💡 💡 💡 💡 💡 💡 💡 💡 💡 💡 💡 💡 💡 &...

2 years ago

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Van Eck's Sequence's nth member

Return the Van Eck's Sequence's nth member. For detailed info : <http://oeis.org/A181391 OEIS link> and <https://www.theguard...

2 years ago

Solved

Octoberfest festival

A group of students decided to visit Octoberfest festival. First they ordered one beer, then after half-hour they taken one more...

2 years ago

Solved

Inscribed Pentagon?

Your function will be provided with the five vertices of a pentagon (p) as well as the center point (cp) and radius (r) of a cir...

2 years ago

Solved

Recaman Sequence - II

Take an arbitrary starting point as input and create Recaman Sequence. Then find the 1, return its index. For example: if n =...

2 years ago

Solved

Recaman Sequence - I

Recaman Sequence (A005132 - <http://oeis.org/A005132 - OEIS Link>) is defined as follow; seq(0) = 0; for n > 0, seq(n) ...

2 years ago

Solved

The Top 5 Primes

This problem series invites you to solve two simple problems related to the integer NUMBER FIVE, in order to celebrate <https://...

2 years ago

Solved

Write c^3 as sum of two squares a^2+b^2

write c^3 as sum of two squares a^2+b^2. a and b must be integer and greater than zero. For example 5^3 = 2^2 + 11^2 5...

2 years ago

Solved

Spot the First Occurrence of 5

This problem series invites you to solve two simple problems related to the integer NUMBER FIVE, in order to celebrate <https://...

2 years ago