Asymptote using graph.asy – fig0330

Category: Asymptote,Examples 2D,graph.asyPh. Ivaldi @ 10 h 10 min

Figure 0032
(Compiled with Asymptote version 2.14svn-r5318)
    
import slopefield;
import graph;
size(8cm,0);
real f(real t) {return exp(-t^2);}
defaultpen();

xlimits( 0,1);  
ylimits( 0,1);  
yaxis( "$y$" ,LeftRight, RightTicks);
xaxis( "$x$", Ticks());
draw(graph(f,0,1),"$x\longmapsto{}e^{-x^2}$");
draw(curve((0,0),f,(0,0),(1,10)),linecap(0)+red,"$\displaystyle x\longmapsto\int_{0}^{x}e^{-t^2}\;dt$");

//Test with three values calculated with Maxima:
dot((.25,0.13816319508411845*sqrt(pi))^^(.5 , 0.26024993890652326*sqrt(pi)));
dot((.75, 0.3555778168267576*sqrt(pi)));

attach(legend(),point(10S),30S);

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Official Asymptote example – slopefield1

Category: Asymptote,Official Gallery One-PagerPh. Ivaldi @ 22 h 57 min

Figure 0206
(Compiled with Asymptote version 2.14svn-r5318)
/* This code comes from The Official Asymptote Gallery */
    
import slopefield;

size(200);

real func(real x) {return 2x;}
add(slopefield(func,(-3,-3),(3,3),20,Arrow));
draw(curve((0,0),func,(-3,-3),(3,3)),red);



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