Solved

Sum My Indices
Given inputs M and N (in that order), output an MxN matrix whose entries are equal to the sum of their indices. Example input...

7 maanden ago

Solved

Getting the indices from a matrix
Inspired by Problem 645. Getting the indices from a matrix. Given a matrix A (or a vector), return the indices (always in row...

7 maanden ago

Solved

First non-zero element in each column
For a given matrix, calculate the index of the first non-zero element in each column. Assuming a column with all elements zero i...

7 maanden ago

Solved

Replicate elements in vectors
Replicate each element of a row vector (with NaN) a constant number of times. Examples n=2, A=[1 2 3] -> [1 1 2 2 3 3] ...

7 maanden ago

Solved

Set the array elements whose value is 13 to 0
Input A either an array or a vector (which can be empty) Output B will be the same size as A . All elements of A equal to 13...

7 maanden ago

Solved

Getting logical indexes
This is a basic MATLAB operation. It is for instructional purposes. --- Logical indexing works like this. thresh = 4...

7 maanden ago

Submitted

Isprime optimus [FAST]
Primality test using isprime Matlab(r) stock function, but ~60% faster. Based on Nicolas Douillet 'Christmas eve prime squares e...

7 maanden ago | 1 download |

Submitted

alGolbach
Algorithm to compute and list every Goldbach couples of prime numbers which sum equals the given -even- input

7 maanden ago | 1 download |

Submitted

Prime numbers spirals
Functions to display prime numbers spiral and prime squares spiral. Also check primes sum and prime squares spiral length.

7 maanden ago | 4 downloads |

Answered
Quickest way for alternate indexing a vector
Thank you all for your interest and answers :-) I am going to test them, pick the best in my case, and then choose for the co...

7 maanden ago | 0

Question

Quickest way for alternate indexing a vector
Hey, I am looking for the quickest way to create a vector like this : u = [5 7 11 13 17 19 23 25 ...

7 maanden ago | 5 answers | 0

5

answers

Submitted

Sample triangle (2D, 3D, ND)
Function to generate a triangular sampling grid of a given triangle

11 maanden ago | 2 downloads |

Submitted

Projective geometry demo
A "pedagogic" demo of projective geometry showing some mathematical objects projections

11 maanden ago | 2 downloads |

Submitted

Mesh ovoid
Function to compute, display, and save a meshed ovoid

11 maanden ago | 2 downloads |

Answered
Apparent distance conservation in Matlab plot window while rotating 3D objects
Ok I realized I have to be even clearer. I am going to eplore the camera toolbar possibilities -which I didn't really know unti...

11 maanden ago | 0

Submitted

Apollonian gaskets
Function to compute and display the apollonian gasket of any 3D triangle or 3D regular polygon

11 maanden ago | 1 download |

Submitted

chat with HAL9000 !
chat with HAL9000 and try to survive it ! ^_^

11 maanden ago | 2 downloads |

Submitted

Meshed Reuleaux tetrahedron
Function to compute, display, and save a meshed Reuleaux tetrahedron

11 maanden ago | 1 download |

Question

Apparent distance conservation in Matlab plot window while rotating 3D objects
Hey, When you plot a 3D object in Matlab and turn it around the apparent distance to this object will change, even if you set...

12 maanden ago | 2 answers | 0

2

answers

Submitted

Regular polyhedron inscribed sphere
Function to compute and display the inscribed sphere of a regular polyhedron.

ongeveer een jaar ago | 1 download |

Answered
Rendering problem with surf and trisurf
Any clue ? Thank you.

ongeveer een jaar ago | 0

Question

Rendering problem with surf and trisurf
Hey, When I use surf or trisurf functions to plot a 3D plane made of several ploygons (triangles or squares for instance), I ...

ongeveer een jaar ago | 1 answer | 0

1

answer

Submitted

isinside2Dset
Function to check if a vertex is located inside or outside a given 2D set.

meer dan een jaar ago | 1 download |

Submitted

Jerusalem cube
Function to compute, display, and save the Jerusalem cube at any iteration. Help, doc, and examples included.

meer dan een jaar ago | 1 download |

Submitted

Sierpinski ball
Function to compute, display, and save the Sierpinski ball (fractal sponge) based on the regular octahedron

meer dan een jaar ago | 1 download |

Solved

generate number in particular way
A = [1 5 2 7]; MAX = 10; generate a array Y = [1 2 2 2 2 2 3 3 4 4]; i.e. total eleme...

meer dan een jaar ago

Solved

Find the sum of the elements in the "second" diagonal
Find the sum of the elements in the diagonal that starts at the top-right corner and ends at the bottom-left corner.

meer dan een jaar ago

Submitted

3D printable Christmas star
Function to compute, display and save a 3D printable Christmas star.

meer dan een jaar ago | 1 download |

Submitted

3D printable Koch snowflake
Function to compute, display, and save the triangular base 3D Koch snowflake at any iteration. Help, doc, examples included.

meer dan een jaar ago | 2 downloads |

Submitted

Cube base 3D Koch snowflake
Function to compute, display, and save the cube base Koch snowflake, at any iteration. 3D printable ready option. Help, doc, exa...

meer dan een jaar ago | 4 downloads |