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Peter Corke


Queensland University of Technology

Last seen: 14 Tage vor Aktiv seit 2013

Professional Interests: robotics, computer vision

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Spatial Math Toolbox
Spatial math primitives for MATLAB

fast 2 Jahre vor | 264 Downloads |

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Frage


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...

fast 3 Jahre vor | 1 Antwort | 0

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Antwort

Frage


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...

etwa 3 Jahre vor | 1 Antwort | 2

1

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Gelöst


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 3 Jahre vor

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 3 Jahre vor | 0 | 18 Lösungsvorschläge

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 3 Jahre vor | 1 | 11 Lösungsvorschläge

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 3 Jahre vor | 1 | 14 Lösungsvorschläge

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 3 Jahre vor | 1 | 7 Lösungsvorschläge

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 3 Jahre vor | 1 | 6 Lösungsvorschläge

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 3 Jahre vor | 1 | 4 Lösungsvorschläge

Gelöst


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 3 Jahre vor

Gelöst


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

mehr als 3 Jahre vor

Gelöst


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 3 Jahre vor

Gelöst


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 3 Jahre vor

Gelöst


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

mehr als 3 Jahre vor

Gelöst


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

mehr als 3 Jahre vor

Gelöst


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

mehr als 3 Jahre vor

Gelöst


inner product of two vectors
inner product of two vectors

mehr als 3 Jahre vor

Gelöst


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

mehr als 3 Jahre vor

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...

fast 4 Jahre vor | 1 | 9 Lösungsvorschläge

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...

fast 4 Jahre vor | 2 | 15 Lösungsvorschläge

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...

fast 4 Jahre vor | 2 | 45 Lösungsvorschläge

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...

fast 4 Jahre vor | 1 | 38 Lösungsvorschläge

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 ...

fast 4 Jahre vor | 1 | 12 Lösungsvorschläge

Problem


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

fast 4 Jahre vor | 1 | 19 Lösungsvorschläge

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...

fast 4 Jahre vor | 1 | 39 Lösungsvorschläge

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...

fast 4 Jahre vor | 3 | 74 Lösungsvorschläge

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...

fast 4 Jahre vor | 2 | 52 Lösungsvorschläge

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...

fast 4 Jahre vor | 2 | 114 Lösungsvorschläge

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...

fast 4 Jahre vor | 1 | 66 Lösungsvorschläge

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