Sorry to be so slow on Smath. Some thing work like Mathcad and some don't. I need help with the correct syntax for the interpolation function linterp. I have tired all combinations of syntax that I can think of and none work in the attached Smath file.

Help would be appreciated.



RMD CALCULATION.sm (15 КиБ) скачан 43 раз(а).

Oops I meant this way to no success.

RMD CALCULATION.sm (15 КиБ) скачан 43 раз(а).

I don't think vectorize works with this function. It is expecting a single value in argument 3. Checkout my linterp2 function in the attached. I think it does what you want.
RMD CALCULATION.sm (18 КиБ) скачан 49 раз(а).

Note: In my program, it is not necessary to initialize the result. However, I have found that in cases of large vectors, it speeds up processing time to initialize a vector to the expected size and then fill in values. I generally just do this as standard practice now even if it's not necessary.

Thanks much. You are a real help.

I did not realize that the interpolation functions required additional programming. I incorrectly assumed it was like Mathcad. Many things are like Mathcad, but clearly not all.

Thanks again.


Reg

No problem!. Welcome to the forum. There are a lot of people here who are regular contributors and will help you with questions you have. For me, it's why I primarily use SMath for my calculations.

Regarding similarity/dissimilarity to MathCAD... once you start using SMath more you'll stop thinking in "MathCAD" and be able to think in "SMath". As a former MathCAD convert myself, I really started to come into my own when I stopped thinking of how I would do things in MathCAD and started figuring out how best to use SMath.

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Some thing work like Mathcad and some don't.I need help with the correct syntax for the interpolation function linterp.

Read carefully: linterp, cinterp are 1/1 Mathcad
Smath ainterp has special virtues not found in Mathcad.
Smath linterp, cinterp, ainterp are 1/1 Mathcad as interpolation.
but are 0/1 as scalar functions. In many instances, it is possible
to recast the problem in the form of infinitesimal analysis.
I found no way to render a_c_l interp scalar Mathcad style.
Though, I have the Mathcad code. Don't confuse yourself, a_c_l_interp
they plot on the canvas, i.e: they plot scalar.
scalar is a kernel internal vanishing iterator
Next question: please attach the Smath document.

Jean

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Oops I meant this way to no success.

Sorry, I downloaded the other one.
Either blue/red will each have an extraordinary good model fit,
for further processing [deriv, int].

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Oops I meant this way to no success.

RMD CALCULATION (J).sm (18 КиБ) скачан 36 раз(а).

... a bit .

RMD CALCULATION (J).sm (26 КиБ) скачан 31 раз(а).

... interesting stuff .

Interpolate [Linterp, Spline2D].sm (118 КиБ) скачан 43 раз(а).

Jean,
I appreciate your attempt at helping me. Unfortunately, I am new to Smath and don't really understand your syntax in your attached sm file. See my comments in the attached file.

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Oops I meant this way to no success.

RMD CALCULATION (J).sm (18 КиБ) скачан 36 раз(а).

RMD%20CALCULATION%20(J)-1.sm (21 КиБ) скачан 32 раз(а).

Sorry, I am just too new to this code to appreciate your input.
Thanks again,
Reg

Hi. You can do some plots too.
Best regards.
Alvaro.

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Thanks to all. I was able to find some useful stuff from everyone. Here is where I was headed.

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Sorry, I am just too new to this code to appreciate your input.
Thanks again,
Reg

Hello Reg ... answered in blue

RMD CALCULATION (J in_blue)-1.sm (24 КиБ) скачан 37 раз(а).

Just a note.

Pay attention to the plot by Alvaro. He uses often neded lele() function (Custom functions plugin) for checking if the value is in a range: Xmin<=x<=Xmax

Regards,
Radovan

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Thanks to all.I was able to find some useful stuff from everyone.

... more in there for publishing.
Little Smath doing so much, so nice !

Jean

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Is this XY plot new? I find it really helpful.

RMD CALCULATION.sm (18 КиБ) скачан 42 раз(а).

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Is this XY plot new?I find it really helpful.

Not new, just from applied Smath features as in older SS 6179.