There is something wrong in this script because when I run this program it shows file:line:1, coloum:1 invalid use of operator

// to plot a graph of exponential function x=[0:.1:2]; //x y=exp(x); p1=1+x; p2=1+x+x^2; p3=1+x+x^2+x^3; p4=1+x+x^2+x^3+x^4;

plot(x,y,"ro-",x,pl,"rx-",x,p2,"gd-",x,p3,"ms-",x,p4,"k^-"); legend ("y","pl","p3","p3","p4");

Answer 1

[Voss]

Use " % " to create a comment in MATLAB code.

Then use " .^ " rather than " ^ " when operating element-wise on an array (and use p1 instead of pl, etc.).

% to plot a graph of exponential function 
x=[0:.1:2]; %x 
y=exp(x); p1=1+x; p2=1+x+x.^2; p3=1+x+x.^2+x.^3; p4=1+x+x.^2+x.^3+x.^4;
plot(x,y,"ro-",x,p1,"rx-",x,p2,"gd-",x,p3,"ms-",x,p4,"k^-"); legend ("y","p1","p2","p3","p4");

[Lavish Goel]

Thnx very much bro