## 395 Reputation

10 years, 258 days

## Interpolating points with a cubic Hermit...

Maple

Hello,

I would like to understand this code which has been discussed in the forum a moment ago.

http://www.mapleprimes.com/posts/120138-Exact-Cubic-Hermite-Spline

Here the Maple code :

alec_modified_hermit.mw

Does somebody know the theoric developpements to this code ?

May you help me to add comments so as to facilitate the link with the theory ? One line in front of each procedure should be enough for me to understand. For the moment, I didn't manage to match it with the theory.

When I would understand this code, I would like in a second step compare the result with Catmull-Rom splines.

Thanks a lot for your help.

@acer : I think this subject may interest you

## Automatic indentation...

Maple

Hello,

Is it possible to obtain a nice indentation with a automatic process? Do you have some tips on this subject?

My objective is to improve the indentation of my code so as to make my worksheet easier to read.

## Importing data from Excel into Maple ...

Maple

Hello,

Thanks to different posts of the subject "Exporting data from Excel to Maple", I could learn the method to do it and conduct it.

Now, I would like to store the data exported from Excel to Maple in the worksheet and make my worksheet independent from the excel sheet.

The idea is that I can send my worksheet to a collegue and he can use without the excel sheet.

May you advice me a strategy to store the imported data ?

The copy/ paste works but it doesn't look smart.

## Periodic extention of parametric plot...

Maple

Hello,

I would like to build a periodic curve but starting from a parametric curve and not with a function.

Thanks to you tips, I could obtain a periodic function with a piecewise function starting from a function (http://www.mapleprimes.com/questions/208795-Periodic-Piecewise-Function)

I would like to do the same approach but starting from this parametric curve f :

V:=Vector([cos(t),sin(t)]);
f:=unapply(V, t);
plot( [f(t)[1],f(t)[2], t = 0..evalf(Pi)],color=red, scaling=constrained);

And I would like to build a periodic curve (the period is defined on the x axis) g such as :

Unfortunately, the approach presented in the post http://www.mapleprimes.com/questions/208795-Periodic-Piecewise-Function does'nt work anymore.

Do you have ideas to build this periodic curve starting from the parametric curve defined above ?

The aim of my question is more linked to the methodolody than the result.

## Periodic piecewise function...

Maple

Hello,

I would like to build a periodic function based on the function x-->x².

For x belonging to [0,2], the function is defined like this :

And for the rest of the domain in R, the function should be periodic with a period of 2.

In other words, I would like to define a function which permits me to obtain this plot :

Sorry, for my picture which is very ugly, but it should enable to explain what I'm looking for.

1) Is a new piecewise function based on f function is the better solution to create this kind of periodic function ?

2) I didn't find or understand with the help how i can create "infinite" piecewise function. May you help me to define this kind of piecewise function ?

Thanks a lot for your help.

P.S: With the term "nested" in my title I only want to say that I want to apply another piecewise function (for example g) on a already created function (for example f). this term may be not very appropriated.

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