ComputerUser

525 Reputation

10 Badges

9 years, 202 days

Social Networks and Content at Maplesoft.com

Seldom to ask question after retired math hobby Just waiting for beauty who born in 1994 And waited for her email to mavio@protonmail.com What is the difference in ownership among different universe?

MaplePrimes Activity


These are questions asked by ComputerUser

if there is a equation subs(...)

how to make a similar symbol like Diff(f(t),t) and diff(f(t),t) use for a new solver procedure use?

   1 1 1 2 2 3 3  

(  1 3 3 2 2 1 2 )

how to input this permutation into permgroup ?

 

with(DiscreteTransforms);
Digits := 600;
ss := 1:
windowlength := 50:
ma := []:
me := []:
counter1 := 1:
Z := Vector(windowlength, datatype = complex[8]);
Z5 := []:
for i from windowlength+ss to 1+ss by -1 do
eq2 := x:
eq2a := x*2:
god := solve(eq2a=y, t);
ma := [op(ma), evalf(subs(t=100, eq2a))]:
me := [op(me), 100]:
Z[counter1] := [Complex(evalf(subs(t=100, eq2a)),0)];
counter1 := counter1 + 1:
od:
Z2 := FourierTransform(Z);
Z5 := []:
for i from 1 to counter1 do
Z5 := [op(Z5),Re(Z2[i])]:
od:
p := dualaxisplot(listplot(Z, color = red), listplot(me, color = blue), style = line, gridlines = false):
p3 := dualaxisplot(listplot(ma, color = red), listplot(me, color = blue), style = line, gridlines = false):
> Z[counter1] := [Complex(evalf(subs(t = 100, eq2a)), 0)];
Error, unable to evaluate expression to hardware floats: [0.1395407376854069872222364799062994087470140319577366200576294159849633469734297167456440703192248821030980068084453175485138428545865904609881858312543669285411895851509107873579430804484462212873775830538595858575740816705029437533106045686220745333574567547827085763824574616984653193169818770743931611305635956093618789559193701301264280264321394773730076308141252308187470580964653518965117431518571850910086488220847415724949651796448259541027929735646487459091205173804995401770417274097230705447077344465381061736283732438996738107330437055827420813951050981604075837450139995544638...
> Complex(evalf(subs(t=100, eq2a));
Error, unable to match delimiters
Typesetting:-mambiguous(Complexlparevalf(subs(tequals100comma eq2a)),
  Typesetting:-merror("unable to match delimiters"))
> Complex(evalf(subs(t = 100, eq2a)), 0);
1.395407376854069872222364799062994087470140319577366200576294159849633469734\
  297167456440703192248821030980068084453175485138428545865904609881858312543\
  669285411895851509107873579430804484462212873775830538595858575740816705029\
  437533106045686220745333574567547827085763824574616984653193169818770743931\
  611305635956093618789559193701301264280264321394773730076308141252308187470\
  580964653518965117431518571850910086488220847415724949651796448259541027929\
  735646487459091205173804995401770417274097230705447077344465381061736283732\
                                                                               -571
  43899673810733043705582742081395105098160407583745013999554463814123790354 10   
   + 0. I

For example
input 3 lists

[1,2,3,4,5]
[0,5,2,3,7]
[7,5,2,3,2]
 

return [2,3],[5,2,3]

If maple can auto discover derived equations, 

then most variable are unknown name which may or may not be physics variable.

so, how to guess which physics data suitable for these look like meaningless variable?

or these tools only visualize the relationship of existing known equations?

First 6 7 8 9 10 11 12 Last Page 8 of 141