As a civil engineer, over the years I have frequently used MathCAD for not only performing but also documenting calculations. With PTC dropping perpetual licensing, my recommendation to all the junior engineers I train is to give SMath Studio a serious look. While not a turnkey replacement for MathCAD, it provides most of the functionality and power at an incredible price. Already a wonderful program filling a key niche spot between a numerical calculator like Octave, and a CAS like Maxima, the expanding plugin and 3rd party development is on the rise and this project's future keeps getting even brighter. Much consideration must be given by any engineer or business before they settle on a software for adopting into the workflow. Although not open-source in the strictest sense, the development community is similar to what you would find in any first class OSS software project. The current owner of the SMath Project has also agreed to release the source code under open source license should he not be able to continue the project. So do not let the cost (your time) of learning SMath Studio and migrating your MathCAD computation sheets scare you. This project is here to stay.

by Michael Fuller, P.E., PMP

I strongly encourage professionals who use the software for commercial purpose to donate. SMath Studio, in my opinion, is better suited for documenting engineering calculations than MathCAD Prime 3, which is commercially developed, and is considered to be the software of choice by many. As engineering professionals, we all pay yearly professional license fee; if we donate a fraction of that fee to Andrey it will let him to continue working on this extremely useful and functional tool. Thank you, Andrey! Long Live SMath

by Alex M.

Très bon logiciel de calcul, avec de nombreux plugin pour tous les usages. Une fois qu'on s'habitue, on ne peut plus s'en passer. Je le recommande vivement. Outre les fonction mathématiques, Il est possible d'utiliser de nombreuses bibliothèques, comme par exemple la bibliothèque Coolprop pour les données thermodynamiques, ce qui permet d'avoir un outil très évolué pour faire et expliquer des calculs très rapidement.

by Vidal Silva

This has been a great step up from Excel. Extensive (and extensible) support for engineering units opens a new world for well documented everyday analysis. Thank you!

by Mike Graham

Grazie tanto per lo splendido lavoro. Io lo uso per i miei calcoli di elettronica. Большое спасибо за замечательную работу. Я использую его для моих вычислений электроники. Thank you so much for the wonderful job. I use it for my electronics calculations.

by Vito BLASI

SMath Studio in the Cloud is ideal to show calculations to my students. They only have to click at the internet hyperlink. Teacher at school of mechanical engineering, bachelor level.

by Hein van de Vrande

This mathematical tool is very useful. I was a Mathcad user, now I use SMath in all courses I teach and ask my students to use it.

by Waluyo Adi Siswanto

Excelente programa, es como tener el clásico papel y lápiz pero ahora con un potente calculador y con muchas funciones, me gustaría que tenga opciones de base de datos para poder usarlo en la ciencia Estadística.

by Christian Minaya

Simplemente la mejor y libre alternativa a Mathcad. Gracias

by Jorge Rodríguez

Smath is a very simple program to use. It´s similar to Mathcad and it´s free. I use it for my spreedsheets at work. I recommend it, without a doubt.

by Joaquín Guraiib