If you are thinking about getting MathCAD for your business or personal use you may want to try SMath Studio first. SMath Studio is a free math program with easy to use intuitive "paper-like" interface. If SMath Studio meets your needs then look no further and consider donating to promote further development of this great program. On the SMath Studio forum, the developer and forum community are very receptive to help questions, bug reports, and feature requests.

by j_kris

Tenho usado Mathcad por muitos anos, como estudante, como pesquisador e como engenheiro químico. Mas Mathcad se tornou inviável há alguns anos. É formidável ter uma ferramenta tão boa quanto ele de forma gratuita ou a curtos muito baixos como o SMath! Obrigado LLC SMath e Andrey Ivashov!

by Alexandre Umpierre

Andrey has given us back the joy of Math that we experimented with Mathcad some thirty years ago, until PTC messed it all up. A fantastic achievement! And free! I am beginning to use it intensively to help my engineering students.

by Manuel Vargas

Great software. Easy to use. Looks nice.

by Jon Brabbs

The best software for Engineers. Easy, lightweight and comprehensive. Kudos to its Developer.

by Shafiq

I have been wishing for a sensible alternative to the free version of MathCAD for a long time. I find such software a crucial tool for writing technical-paper-style documents with live formulas and units carried throughout. I am so happy to have found SMath Studio as it is not just a completely free, fully featured alternative, but I find it to be much better in that it is tiny, is easier to use, has nice community support and has nice expandability by others (through plugins). It has features I've always wanted like setting of number of significant digits (not just number of decimal places), easier typing of subscripts, better plotting (via the X-Y Plot plugin), ability to include other SMath files (like my own units definitions), the very innovative and helpful "dynamic assistant", the ability to assign values to variables *after* the writing of a formula, no watermark across each page, and many other improvements that I have yet to discover. Since I am so pleased, I just donated $100 which I feel is a more reasonable amount for software like this. Thank you, Andrey!

by John David Heinzmann

Must have for every engineer.

by Florian

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

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

Muy buena la aplicación. Ligera, potente y eficaz para lo que está diseñada. Es mi herramienta diaria para cálculos de Ingeniería Civil en Venezuela.

by Kenny Silva