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 (15,13 KiB) descargado 1292 vez(es).

Oops I meant this way to no success.

RMD CALCULATION.sm (15,27 KiB) descargado 1254 vez(es).

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 (18,24 KiB) descargado 1262 vez(es).

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.

Wrote

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

Wrote

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].

Wrote

Oops I meant this way to no success.

RMD CALCULATION (J).sm (18,81 KiB) descargado 1274 vez(es).

... a bit .

RMD CALCULATION (J).sm (26,09 KiB) descargado 1279 vez(es).

... interesting stuff .

Interpolate [Linterp, Spline2D].sm (118,34 KiB) descargado 1109 vez(es).

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.

Wrote

Wrote

Oops I meant this way to no success.

RMD CALCULATION (J).sm (18,81 KiB) descargado 1274 vez(es).

RMD%20CALCULATION%20(J)-1.sm (21,15 KiB) descargado 1406 vez(es).

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.

RMD CALCULATION.sm (10,79 KiB) descargado 1298 vez(es).

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

RMD CALCULATION.sm (16,94 KiB) descargado 1214 vez(es).

Wrote

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 (24,61 KiB) descargado 1230 vez(es).

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

Wrote

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

RMD CALCULATION (J).sm (35,64 KiB) descargado 1266 vez(es).

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

RMD CALCULATION.sm (18,33 KiB) descargado 1220 vez(es).

Wrote

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

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