Calculate distance between 2 points using array

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Antonin Ponchon De Saint Andre
评论： Matt J 2021-5-1
Hi, how can I find the distance between 2 points using this equation? eqn=sqrt{{X_{i+1}-X_{i}}^2+{{Y_{i+1}-Y_{i}}^2}};
I need to use a matrix that is defined by the user (it cannot be changed) so any coordinates can be entered.
numberOfCoord=input('Please Input the Number of Coordinates:');
if numberOfCoord < 4
disp (['Error']);
return
end
data = zeros(2, numberOfCoord);
for i= 1:1:numberOfCoord
data(1, i)=input('Please Enter X Coordinate:');
data (2, i)=input ('Please enter Y Coordinate:');
end
if i < 0
disp (['Error']);
return
end
any tips or help to solve this would be great thanks :))
  2 个评论
Turlough Hughes
Turlough Hughes 2021-5-1
This code requires atleast 4 points, are you looking for distances from a given point to every other point?
Antonin Ponchon De Saint Andre
Antonin Ponchon De Saint Andre 2021-5-1
it would be between each pair of corners (i.e. distance between point 1 & 2, 2 & 3, 3 & 4, 4 & 1 IF 4 points are entered in the code)

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采纳的回答

Matt J
Matt J 2021-5-1
编辑：Matt J 2021-5-1
vecnorm( diff(data,1,2) , 2, 1)

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