SigmaCAD

SigmaCAD is a program that is designed mainly for performing typical calculations when designing heating, ventilation, air conditioning, heating, cooling and other systems most commonly encountered in the design of engineering systems in construction and energy sectors. Calculation methods are taken from the "golden fund" of technical literature of the Soviet Union era, modern technical normative literature, as well as popular science magazines, such as "Energy and Fuel and Energy Complex" (column "Science for Practice").

All calculations are made as universal as possible for application in any country. Some calculations, such as bilinear interpolation, table interpolation (whole) or text calculator, for example, can be useful to everyone and used for any purpose. Built-in arithmetic text calculator, adapted for engineering calculations or calculation of lists of any mathematical expressions in external files (*.txt format), which implements a reference mechanism similar to Excel. Allows you to create any calculations at once, showing the course of the calculation, and then use them repeatedly. You can add your own formula templates, etc. to the menu. Designed to be used for "every day" design.