Christopher2222

7 years, 285 days


These are questions asked by Christopher2222

For the iterators package on Maple 2016 the graphic below was used.  Because it was used, it had to have been created with Maple, right?

Was that done with Maple?  If so, how?

 

How do you put labels on individual columns in ColumnGraph?

I tried to fit a sin function to some data using Statistics[Fit] however the result either didn't work properly or worked differently from the way I expected it to work.

a2 is the calculated function from Statistics[Fit] and a3 is some quickly inserted values that provides a more satisfying result. 

Why is a better fitting line not found?


restart; gc()

X := [73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91]:

Y := [35, 35, 36, 41, 47, 42, 43, 37, 34, 28, 28, 30, 27, 33, 35, 38, 42, 42, 40]:

``

with(plots):

with(Statistics):

a1 := pointplot(zip(`[]`, X, Y)):

f := Statistics:-Fit(a*sin(b*x+c)+d, X, Y, x)

HFloat(2.1212360930685046)*sin(HFloat(1.0274743698606499)*x-HFloat(2.6022740116723866))+HFloat(36.46562486953954)

(1)

a2 := plot(f, x = 72 .. 92):

``

display(a1, a2)

 

f1 := 8*sin(.5*x-5.5)+36

8*sin(.5*x-5.5)+36

(2)

a3 := plot(f1, x = 72 .. 92):

``

plots:-display(a1, a3)

 

``


Download Fitting-Sine-off.mw

Limitation of Maple spreadsheet is only 100 x 52

I don't know why there's a limitation on the size but there's no way of increasing it either.  Is there?

 

Just to be sure that some outside operation wouldn't nudge the spreadsheet size I tried

with(Spread):
a:=CreateSpreadsheet():
b:=Matrix(100,100):

SetMatrix(a,b)
                           Error, (in Spread:-SetMatrix) spreadsheets cannot exceed 52 columns

So unfortunately until the feature gets built into Maple I don't believe there is a workaround.

Is it possible to make a call to any of the plot options without using it's designated name?

I don't know if I'm clear enough but for example

Instead of
plot({x^2,x+1},linestyle=[dash,dashdot])

use some argument that designates the first and second option etc ...
for example like
plot({x^2,x+1},linestyle=["%1","%2"])

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