I am defining a semicircle profile and then finding the x and y coordinate using interpolation at gauss legendres points
r = 0.35;
theta= linspace(pi/2,-pi/2,51);
xq = r*cos(theta);
yq = r*sin(theta)+r;
L = max(xq);
xn = xq/L;
x = spline(xn,xq,xx); %xx are gauss legendres quadrature points along x axis
y = spline(xq,yq,x);

while running the code it is showing error :Error using chckxy
The first input must contain unique values.
Error in spline
[x,y,sizey,endslopes] = chckxy(x,y);
x = spline(xn,xq,xx);

since the profile is semi circle there is duplicate x coordinates. how do i solve this error ?I am defining a semicircle profile and then finding the x and y coordinate using interpolation at gauss legendres points
r = 0.35;
theta= linspace(pi/2,-pi/2,51);
xq = r*cos(theta);
yq = r*sin(theta)+r;
L = max(xq);
xn = xq/L;
x = spline(xn,xq,xx); %xx are gauss legendres quadrature points along x axis
y = spline(xq,yq,x);

while running the code it is showing error :Error using chckxy
The first input must contain unique values.
Error in spline
[x,y,sizey,endslopes] = chckxy(x,y);
x = spline(xn,xq,xx);

since the profile is semi circle there is duplicate x coordinates. how do i solve this error ? I am defining a semicircle profile and then finding the x and y coordinate using interpolation at gauss legendres points
r = 0.35;
theta= linspace(pi/2,-pi/2,51);
xq = r*cos(theta);
yq = r*sin(theta)+r;
L = max(xq);
xn = xq/L;
x = spline(xn,xq,xx); %xx are gauss legendres quadrature points along x axis
y = spline(xq,yq,x);

while running the code it is showing error :Error using chckxy
The first input must contain unique values.
Error in spline
[x,y,sizey,endslopes] = chckxy(x,y);
x = spline(xn,xq,xx);

since the profile is semi circle there is duplicate x coordinates. how do i solve this error ? spline, fem MATLAB Answers — New Questions

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