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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...
5 years ago | 1 answer | 0
1
answerQuestion
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...
5 years ago | 1 answer | 2
1
answerSolved
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...
5 years 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...
5 years ago | 0 | 21 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()| .
5 years ago | 1 | 15 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...
5 years ago | 1 | 16 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...
5 years ago | 1 | 9 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...
5 years ago | 2 | 13 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...
5 years ago | 1 | 7 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.
5 years 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 ...
5 years 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 ...
5 years ago
Solved
Whether the input is vector?
Given the input x, return 1 if x is vector or else 0.
5 years ago
Solved
Get the length of a given vector
Given a vector x, the output y should equal the length of x.
5 years ago
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...
5 years ago | 1 | 11 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...
5 years ago | 2 | 17 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...
5 years ago | 2 | 57 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...
6 years ago | 1 | 48 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 ...
6 years ago | 1 | 15 solvers
Problem
Pose interpolation in 2D
Consider two poses represented by homogeneous transformation matrices: |T1| and |T2|. Write an algorithm to interpolate between...
6 years ago | 1 | 26 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...
6 years ago | 1 | 54 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...
6 years ago | 4 | 96 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...
6 years ago | 2 | 62 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...
6 years ago | 3 | 149 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...
6 years ago | 1 | 91 solvers