MaplePrimes - answers and comments on Question, How to plot multiple data points

this?

PatrickT — Thu, 13 Dec 2012 23:22:17 Z

# preliminary:
# seq(T, x in [10^10, 10^9, 10^8, 10^7, 10^6, 10^5, 10^4, 10^3, 10^2, 10, 10^0]);

#plotting the (x,T(x)) pairs
plots:-pointplot( [seq([x,T], x in [10^10, 10^9, 10^8, 10^7, 10^6, 10^5, 10^4, 10^3, 10^2, 10, 10^0])]);

# controlling the view
plots:-pointplot( [seq([x,T], x in [10^10, 10^9, 10^8, 10^7, 10^6, 10^5, 10^4, 10^3, 10^2, 10, 10^0])]
, 'view' = [default, 10^(-11) ..0]);

Thanks i actually wanted to plot values from

gdog — Fri, 14 Dec 2012 02:19:05 Z

Thanks i actually wanted to plot values from 10^-10 to 10^10 and thought tha perhaps the answer would help me to do that, is it possible to get maple to insert values with an increment of say 10 in that range?

seq

PatrickT — Fri, 14 Dec 2012 09:25:51 Z

it depends what you mean by incrementing by 10, if you mean the exponent then that's exactly what Markiyan did with L. You can let the index run from -10 instead of 0. If you mean the numbers themselves, you'll run into memory issues, I think.

restart;
T := x -> 6.58*10^38*10^(-25)/x^3:
L := [seq(10^j, j = -10 .. 10)]:
# L := Array([seq(k, k = -10^7 .. 10^7), 10^2]); #error: Error, object too large
Array(%id = 73572924)
plots:-pointplot( map(x -> [x, T(x)] , L)
, 'axis' = [ mode = log ]
, 'view' = min(L) .. max(L)
, 'symbol' = solidcircle
, 'symbolsize' = 12
, 'color' = red
) ;

Slight modification

Markiyan Hirnyk — Thu, 13 Dec 2012 23:46:29 Z

> T := 6.58*10^38*10^(-25)/x^3; L := [seq(10^j, j = 0 .. 10)];
> a := map(x -> [x, 6.58*10^38/(10^25*x^3)] , L);

> plots:-pointplot(a, axis[2] = [mode = log], axis[1] = [mode = log], view = 0 .. 10^(-11),symbolsize=40);

Look at ?plots,pointplot , ?map and around for more info.