Function: Logplot - logarithmic plotting
Calling sequence:
Logplot(e,x=a..b,[lx, ly], options);
Logplot(f,a..b,[lx, ly], options);
Parameters:
e - an expression or set or list of expressions in the variable x .
x - a name
a .. b - a range for the horizontal axis
f - a function or set or list of functions
lx , ly - or , determining whether each axis is logarithmic
options - most of the usual two-dimensional plot options.
Description:
Examples:
Compare the results of Logplot (in red) and loglogplot (in blue), to see the latter procedure's spacing problem.
> with(plots):
>
display([Logplot(x+1, x = 0.01 .. 100, [true,true], colour=red),
loglogplot(2*(x+1),x=0.01 .. 100, colour=blue)]);
>
display([Logplot(abs(cos(ln(x))),x=1..1000, [true,true], colour=red),
loglogplot(abs(cos(ln(2*x))),x=1..1000,colour=blue)],
style=point);
Tickmarks specified as lists.
>
Logplot(x -> 10^x, 1 .. 10, [true,true], tickmarks=[[1,2,3,4,6,8,10],[seq(10^(2*j),j=1..5)]],
labels=["x","y"]);
Several curves plotted together.
> Logplot([ 2^(sin(1/x)), 2^(cos(1/x))], x = 0.05..10, [true,true], colour=[red,blue],axes=frame);
Parametric Logplot .
> Logplot([2+cos,2+sin,-Pi..Pi], [true,true]);
Plotting a list of points.
> Logplot([seq([j,2^j/j^2],j=1..10)], [false, true], colour=blue,ytickmarks=3);
Logplot with polar coordinates.
> Logplot([1+t,t,t=0.01..Pi/2-.01],[true,true],coords=polar);
See also:
loglogplot , logplot , plot[options] , semilogplot
Maple Advisor Database R. Israel 2000