How do I increase the font size for labels and numbers for y and x axis in plot2d function of wxmaxima?
Kill(All);
a:1;
b:1;
AA:1;
BB:1;
c1:(a/b*exp(AA));
c2:(2*a/b);
numerical : rk([v,-a*y],[y,v],[AA,BB],[x,0,4,0.01])$;
analytical:log(sqrt(c1/c2)*(sech(b*x)));
log((sqrt(%e)*sech(x))/sqrt(2))
fpprintprec:8$
yL : makelist([numerical[i][1],numerical[i][2]],i,1,length(numerical))$
plot2d([[discrete,yL],analytical],[x,0,4,0.1],
[style, [lines,6,3], [points,1,1,1]],[y,-10,10],[ylabel,"y"],
[xlabel,"x"],[legend,"solution1","solution2"],[gnuplot_preamble,"set size ratio -1"]);$
["/tmp/maxout3455.gnuplot_pipes"]
I think the following command will do
set tics font ", 30"
However wherever I place this code, the compiler fails to compile that command.
On looking at it again, I see you have gnuplot_preamble already. That's great. You can make a multi-line preamble by simply creating a string with embedded newlines. I find this works:
my_preamble: "set size ratio -1
set tics font \", 30\"";
plot2d (sin(x), [x, 0, 10], [gnuplot_preamble, my_preamble]);
Note that I have escaped the double quotes within the preamble via backslash followed by double quote.
If some Gnuplot stuff doesn't work as expected, you can more easily debug it by saying [plot_format, gnuplot] (instead of gnuplot_pipes) and then plot2d will return the name of the Gnuplot script which was constructed -- you can inspect the file to see what's going on there.