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# Peter Corke

### Queensland University of Technology

Last seen: 3 jours il y a Actif depuis 2013

Professional Interests: robotics, computer vision

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A soumis

Spatial Math Toolbox
Spatial math primitives for MATLAB

presque 2 ans il y a | 107 téléchargements |

Question

How to edit ThingSpeak data gathering script
Long ago I created a ThingSpeak channel to scrape data from a website. I used the template, filled in a bunch of parameters and...

environ 3 ans il y a | 1 réponse | 0

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réponse

Question

Toolbox export using 19a style project files
I'm very confused about these new project files. I have a .prj file that I've used for ages to package my code into a .mltbx fi...

plus de 3 ans il y a | 1 réponse | 2

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réponse

A résolu

How to find the position of an element in a vector without using the find function
Write a function posX=findPosition(x,y) where x is a vector and y is the number that you are searching for. Examples: fin...

presque 4 ans il y a

Problème

Invert a 3D rotation matrix
Given a 3D rotation matrix, belonging to the matrix group SO(3), compute its inverse without using the functions |inv()| or |pin...

presque 4 ans il y a | 0 | 18 solveurs

Problème

Invert a 3D rigid-body transformation
Given an SE(3) matrix representing a rigid-body motion, compute its inverse without using |inv()| or |pinv()| .

presque 4 ans il y a | 1 | 11 solveurs

Problème

Create a 3D rotation matrix
Consider an arbitrary coordinate frame {A}. Consider another coordinate frame {B} which has the same origin as {A} but is rotat...

presque 4 ans il y a | 1 | 14 solveurs

Problème

Create a 3D rotation matrix from roll-pitch-yaw angles
Consider an aerospace application where the world reference coordinate frame {W} and a body-fixed coordinate frame {B}. The ori...

presque 4 ans il y a | 1 | 7 solveurs

Problème

Orientation of a 3D coordinate frame
The orientation of a body-fixed frame {B} with respect to the world frame {W} is described by an SO(3) rotation matrix. Compute...

presque 4 ans il y a | 1 | 6 solveurs

Problème

Determine roll pitch yaw angles from a 3D rotation matrix
Consider an aerospace application where the world reference coordinate frame {W} and a body-fixed coordinate frame {B}. The ori...

presque 4 ans il y a | 1 | 5 solveurs

A résolu

Vector creation
Create a vector using square brackets going from 1 to the given value x in steps on 1. Hint: use increment.

presque 4 ans il y a

A résolu

Create a vector
Create a vector from 0 to n by intervals of 2.

presque 4 ans il y a

A résolu

Doubling elements in a vector
Given the vector A, return B in which all numbers in A are doubling. So for: A = [ 1 5 8 ] then B = [ 1 1 5 ...

presque 4 ans il y a

A résolu

Flip the vector from right to left
Flip the vector from right to left. Examples x=[1:5], then y=[5 4 3 2 1] x=[1 4 6], then y=[6 4 1]; Request not ...

presque 4 ans il y a

A résolu

Whether the input is vector?
Given the input x, return 1 if x is vector or else 0.

presque 4 ans il y a

A résolu

Find max
Find the maximum value of a given vector or matrix.

presque 4 ans il y a

A résolu

Get the length of a given vector
Given a vector x, the output y should equal the length of x.

presque 4 ans il y a

A résolu

inner product of two vectors
inner product of two vectors

presque 4 ans il y a

A résolu

Arrange Vector in descending order
If x=[0,3,4,2,1] then y=[4,3,2,1,0]

presque 4 ans il y a

Problème

Homogeneous lines and points in 2D: problem 1
In high school we learn the line equation y = mx + c where m is the gradient and c is the intercept. However this form is prob...

environ 4 ans il y a | 1 | 9 solveurs

Problème

Pose from bearing angles in 2D
A robot moving on the plane has a sensor that measures the bearing angle to two mapped landmarks, that is, the world frame coord...

environ 4 ans il y a | 2 | 15 solveurs

Problème

Composing relative poses in 2D: problem 1
We consider a world reference frame denoted by {0} which has its x-axis pointing east and its y-axis pointing north. There i...

environ 4 ans il y a | 2 | 46 solveurs

Problème

Composing relative poses in 2D: problem 1
We consider a world reference frame denoted by {0} which has its x-axis pointing east and its y-axis pointing north. There i...

environ 4 ans il y a | 1 | 39 solveurs

Problème

Twists in 2D
So far we have represented the pose of an object in the plane using a homogeneous transformation, a 3x3 matrix belonging to the ...

environ 4 ans il y a | 1 | 12 solveurs

Problème

Pose interpolation in 2D
Consider two poses represented by homogeneous transformation matrices: |T1| and |T2|. Write an algorithm to interpolate between...

environ 4 ans il y a | 1 | 19 solveurs

Problème

Relative points in 2D: problem 3
The 2D pose of a robot, with respect to a world coordinate frame {O}, is described by a 3x3 homogenous transform matrix T. A la...

environ 4 ans il y a | 1 | 40 solveurs

Problème

Relative points in 2D: problem 1
The 2D pose of a robot, with respect to a world coordinate frame {O}, is described by a 3x3 homogenous transform matrix T. A la...

environ 4 ans il y a | 3 | 75 solveurs

Problème

Relative points in 2D: problem 2
The 2D pose of a robot, with respect to a world coordinate frame {O}, is described by a 3x3 homogenous transform matrix T. A la...

environ 4 ans il y a | 2 | 53 solveurs

Problème

Relative pose in 2D: problem 1
We consider a world reference frame denoted by {0} which has its x-axis pointing east and its y-axis pointing north. There is a...

environ 4 ans il y a | 2 | 116 solveurs

Problème

Relative pose in 2D: problem 2
We consider a world reference frame denoted by {0} which has its x-axis pointing east and its y-axis pointing north. There is a...

environ 4 ans il y a | 1 | 69 solveurs