what does rn means and what am I supposed to do with it?

I've got the answer like this on matlab: (25742881424872919087\\\r\n0725189441*x^4)/24350029028325000000 And, I dont know what \\\r\n stands for. Then, how to make it into normal mathematical function? Thank you

[Geoff Hayes]

Venya - what code did you write to the above answer? Are you using the Symbolic Toolbox?

[Venya Celeste]

if true
  % code
clear all
clc
t=[0.5 1.5 3:0.5:9 10 11:0.5:14];
hip_x=[3.5 3.17 1.5 5.5 24.89 93.7 154.5 189.82 218.07 285.75 356.06 418.92 428.28 445.59 483.27 642.3 721.65 724.79 717.23 744.5 759.02 795.97 808.6];
hip_y=[36.5 37.58 35.5 36 20 17.7 10.5 5.04 12.5 17.15 25.06 44.96 39.68 37.82 39.77 27.2 30 31.43 30.6 37.57 41.72 50.93 57.52];
syms p1(x) p2(x) poly1(x) poly2(x)
poly1(x)=0;
poly2(x)=0;
for i=1:length(t)
p1(x)=1;
p2(x)=1;
for j=1:length(t)
if(i==j)
p1(x)=p1(x)*hip_x(i);
p2(x)=p2(x)*hip_y(i);
else
p1(x)=p1(x)*(x-t(j))/(t(i)-t(j));
p2(x)=p2(x)*(x-t(j))/(t(i)-t(j));
end
end
poly1(x)=poly1(x)+simplify(p1(x));
poly2(x)=poly2(x)+simplify(p2(x));
end
disp('Lagrange interpolation for Hip joint (x) vs t');
simplify(poly1)
disp('Lagrange interpolation for Hip joint (y) vs t');
simplify(poly2)

end

[Geoff Hayes]

See https://www.mathworks.com/matlabcentral/answers/337161-what-does-r-n-mean for a similar question and answers.

[Stephen23]

"And, I dont know what \\\r\n stands for."

Newline characters on Windows: https://en.wikipedia.org/wiki/Newline

"Then, how to make it into normal mathematical function?"

What is a "normal mathematical function" in MATLAB terms?

Answer 1

[Steven Lord]

Upgrade from release R2017a to release R2017b or apply the workaround given in bug report 1527220.

Answer 2

[Image Analyst]

It's basically used in sprintf() and fprintf() to cause the subsequent characters to go onto a new line in the string, command line, or file.