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Peter Corke


Last seen: 17 Tage ago

Queensland University of Technology

71 total contributions since 2013

Professional Interests: robotics, computer vision

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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...

10 Monate ago | 1 answer | 0

1

answer

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...

12 Monate ago | 1 answer | 2

1

answer

Solved


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...

mehr als ein Jahr ago

Problem


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...

mehr als ein Jahr ago | 0 | 13 solvers

Problem


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

mehr als ein Jahr ago | 1 | 9 solvers

Problem


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...

mehr als ein Jahr ago | 1 | 8 solvers

Problem


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...

mehr als ein Jahr ago | 1 | 6 solvers

Problem


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...

mehr als ein Jahr ago | 1 | 5 solvers

Problem


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...

mehr als ein Jahr ago | 1 | 3 solvers

Solved


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

mehr als ein Jahr ago

Solved


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

mehr als ein Jahr ago

Solved


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 ...

mehr als ein Jahr ago

Solved


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 ...

mehr als ein Jahr ago

Solved


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

mehr als ein Jahr ago

Solved


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

mehr als ein Jahr ago

Solved


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

mehr als ein Jahr ago

Solved


inner product of two vectors
inner product of two vectors

mehr als ein Jahr ago

Solved


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

mehr als ein Jahr ago

Submitted


Spatial Math Toolbox
Spatial math primitives for MATLAB

mehr als ein Jahr ago | 79 downloads |

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Problem


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...

mehr als ein Jahr ago | 1 | 9 solvers

Problem


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...

mehr als ein Jahr ago | 2 | 13 solvers

Problem


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...

mehr als ein Jahr ago | 1 | 22 solvers

Problem


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...

mehr als ein Jahr ago | 1 | 28 solvers

Problem


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 ...

mehr als ein Jahr ago | 1 | 8 solvers

Problem


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

mehr als ein Jahr ago | 1 | 11 solvers

Problem


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...

mehr als ein Jahr ago | 1 | 19 solvers

Problem


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...

mehr als ein Jahr ago | 1 | 47 solvers

Problem


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...

mehr als ein Jahr ago | 1 | 29 solvers

Problem


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...

mehr als ein Jahr ago | 2 | 80 solvers

Problem


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...

mehr als ein Jahr ago | 1 | 38 solvers

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