Rounding Values in Vectors - User Function

#1 Posted: 4/21/2022 2:07:51 PM

26 likes in 156 posts.

Group: User

Version: 0.99 (Build: 7921)

The rounding function concept for a vector seems to work fine, but I am having trouble with a function that works on a vector containing multiple vectors.
Any ideas on how to make this work?

2022-04-21 13_02_27-SMath Solver - [Rounding Values in Vectors Function Concepts.sm_].png

2022-04-21 13_03_06-SMath Solver - [Rounding Values in Vectors Function Concepts.sm_].png

Rounding Values in Vectors Function Concepts.sm (17 KiB) downloaded 30 time(s).

#2 Posted: 4/21/2022 2:35:30 PM

overlord

549 likes in 1332 posts.

Group: Moderator

Wrote
The rounding function concept for a vector seems to work fine, but I am having trouble with a function that works on a vector containing multiple vectors.
Any ideas on how to make this work?

You can use recursive for that.
You have to also check if rounded row is a vector.
It can work with both vector and nested vector.
Here is your code revised.

Regards

PS: MarB's solution with Razonar's addition is better actually.
I would use that instead of mine, more elegant.
My version is just a brute algorithm.

~~Rounding Values in Vectors Function Concepts.sm (23 KiB) downloaded 19 time(s).~~

rounding_matrices.sm (10 KiB) downloaded 37 time(s).

#3 Posted: 4/21/2022 2:40:42 PM

NDTM Amarasekera

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Group: User

Another approach

Look within!... The secret is inside you. Best Regards Eng. NDTM Amarasekera - Sri Lanka

#4 Posted: 4/21/2022 2:58:17 PM

NDTM Amarasekera

130 likes in 352 posts.

Group: User

Above method will not work if the nested arrays are of different sizes.
Following method will work for any nested array.

Look within!... The secret is inside you. Best Regards Eng. NDTM Amarasekera - Sri Lanka

1 users liked this post

Wesly Centerwall 4/21/2022 3:16:00 PM

#5 Posted: 4/21/2022 3:10:48 PM

Fridel Selitsky

520 likes in 451 posts.

Group: User

Almost the same

Variant.sm (8 KiB) downloaded 24 time(s).

2 users liked this post

NDTM Amarasekera 4/21/2022 3:41:00 PM, Wesly Centerwall 4/21/2022 3:16:00 PM

#6 Posted: 4/21/2022 3:13:35 PM

overlord

549 likes in 1332 posts.

Group: Moderator

Code revised to solve not just vectors but matrices too.
Now very complicated matrices can be rounded.

Regards

PS: MarB's solution with Razonar's addition is better actually.
I would use that instead of mine, more elegant.
My version is just a brute algorithm.

rounding_matrices.sm (10 KiB) downloaded 37 time(s).

4 users liked this post

Wesly Centerwall 4/21/2022 3:16:00 PM, NDTM Amarasekera 4/21/2022 3:41:00 PM, sergio 4/21/2022 4:51:00 PM, Alvaro Diaz Falconi 4/22/2022 11:15:00 AM

#7 Posted: 4/21/2022 3:16:07 PM

Wesly Centerwall

26 likes in 156 posts.

Group: User

Great ideas everyone, thanks for the input and improvements.

#8 Posted: 4/21/2022 5:42:27 PM

Fridel Selitsky

520 likes in 451 posts.

Group: User

Short code option

Variant1.sm (5 KiB) downloaded 20 time(s).

#9 Posted: 4/21/2022 7:38:00 PM

Jean Giraud

983 likes in 6866 posts.

Group: User

Good idea to always start code native Smath ... given user extended.

#10 Posted: 4/21/2022 7:44:19 PM

overlord

549 likes in 1332 posts.

Group: Moderator

You can also shorten function like this.

#11 Posted: 4/22/2022 7:39:35 AM

Martin_B

21 likes in 84 posts.

Group: User

A very short way is to use recursion:

roundM.sm (9 KiB) downloaded 21 time(s).

4 users liked this post

sergio 4/22/2022 8:09:00 AM, Fridel Selitsky 4/22/2022 9:58:00 AM, Alvaro Diaz Falconi 4/22/2022 11:15:00 AM, overlord 4/22/2022 5:33:00 PM

#12 Posted: 4/22/2022 9:33:12 AM

Jean Giraud

983 likes in 6866 posts.

Group: User

Up to this point, proposals round nested vectors.
Dealing with big numbers is also available.
123456789123456789 ... 987654321987654321
123000000000000000 typical

#13 Posted: 4/22/2022 9:44:08 AM

overlord

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Wrote
A very short way is to use recursion.

This is just magnificent. Two heads are better than one.
I couldn't hit off how to do it with vectorize.

Kudos

#14 Posted: 4/22/2022 10:07:55 AM

Fridel Selitsky

520 likes in 451 posts.

Group: User

Wrote
A very short way is to use recursion:

Wonderful!

#15 Posted: 4/22/2022 11:29:14 AM

Alvaro Diaz Falconi

992 likes in 1674 posts.

Group: User

Wrote
A very short way is to use recursion ...

Brillant solution. Adding eval to the SMath's round enables symbolic evaluations too.

Best regards.
Alvaro.

#16 Posted: 4/22/2022 5:35:17 PM

Martin Kraska

1222 likes in 2150 posts.

Group: Moderator

Minimalistic solution for Maximalists.

rounding_matrices_Maxima.sm (4 KiB) downloaded 24 time(s).

Martin Kraska Pre-configured portable distribution of SMath Studio: https://en.smath.info/wiki/SMath%20with%20Plugins.ashx

2 users liked this post

NDTM Amarasekera 4/22/2022 11:46:00 PM, sergio 4/23/2022 5:16:00 AM

#17 Posted: 4/22/2022 7:36:17 PM

Jean Giraud

983 likes in 6866 posts.

Group: User

... twin vectors from function
Advanced Engineering applications.

#18 Posted: 4/22/2022 8:56:06 PM

overlord

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Wrote
Minimalistic solution for Maximalists.

Sometimes I really wish I could use Maxima plugin under linux.

#19 Posted: 4/23/2022 6:31:05 AM

Martin Kraska

1222 likes in 2150 posts.

Group: Moderator

Wrote

Wrote
Minimalistic solution for Maximalists.

Sometimes I really wish I could use Maxima plugin under linux.

It is on my todo list and I think it is possible, but currently priority is on another project which also involves using Maxima and is entirely open source:

https://github.com/mkraska/meclib

Martin Kraska Pre-configured portable distribution of SMath Studio: https://en.smath.info/wiki/SMath%20with%20Plugins.ashx

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Rounding Values in Vectors - User Function - Trying to make a function that rounds values in vectors - Messages