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Intersection of two Lines,which are passing through different slopes and two different points

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Math Enthusiast 2018-11-16

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https://ww2.mathworks.cn/matlabcentral/answers/430225-intersection-of-two-lines-which-are-passing-through-different-slopes-and-two-different-points

评论： Math Enthusiast 2018-11-16

采纳的回答： KSSV

Hi,

I have two Lines.

Line1 has slope m1 and it passes through point (x1,y1).

Line2 has slope m2 and it passes through points (x2,y2).

I would like to find the intersection point of these two lines.

Thanks in advance.

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madhan ravi 2018-11-16

Is it a matlab question or mathematical question?

Math Enthusiast 2018-11-16

just a MATLAB Query

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采纳的回答

KSSV 2018-11-16

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/430225-intersection-of-two-lines-which-are-passing-through-different-slopes-and-two-different-points#answer_347284

编辑：KSSV 2018-11-16

在 MATLAB Online 中打开

m1 = rand ; %slope of line1
P1 = rand(2,1) ;  % line1 passes through this point 
%
m2 = rand ; % slope of line 2
P2 = rand(2,1) ; % line 2 passes through this point 
% Get c
c1 = P1(2)-m1*P1(1) ;
c2 = P2(2)-m2*P2(1) ;
% 
% MAke line coords 
x = linspace(-10,10) ;
%
x1 = x ;
y1 = m1*x1+c1 ;
%
x2 = x ;
y2 = m2*x2+c2 ;
figure
hold on
plot(x1,y1) ;
plot(x2,y2) ;
%
P = InterX([x1;y1],[x2;y2]) ;
plot(P(1),P(2),'*r')

Download InterX from here: https://in.mathworks.com/matlabcentral/fileexchange/22441-curve-intersections?focused=5165138&tab=function

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