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SMath Studio is a freeware (free of charge, but not libre), closed-source, mathematical notebook program similar to Mathcad. It is available for Windows, Linux, iOS, Android, Universal Windows Platform, and on some handhelds. Among its capabilities are: Solving differential equations; Graphing functions in two or three dimensions;
An input unit can be converted to any number of output units—the outputs are specified as a "combination" by separating unit codes with a space (" ") or a plus ("+"). Using a space as a separator does not work if any of the unit codes contains a space. For example, each of the following converts 1.2 km 2 to acres, square yards, and hectares.
For example, the freezing point of water is 0 °C and 32 °F, and a 5 °C change is the same as a 9 °F change. Thus, to convert from units of Fahrenheit to units of Celsius, one subtracts 32 °F (the offset from the point of reference), divides by 9 °F and multiplies by 5 °C (scales by the ratio of units), and adds 0 °C (the offset from the ...
Smath Studio: SMath LLC (Andrey Ivashov) 2006 1.0.8348 11 September 2022: Free Creative Commons Attribution-NoDerivs (CC-BY-ND) Mathematical notebook program, similar to Mathcad, with support for Plugins (e.g. Maxima plugin available) Sysquake: Calerga: 1998 6.5 December 2019: free, $2500 (Pro, commercial), $1000 (Pro, academic) Proprietary
The following tables provide a comparison of computer algebra systems (CAS). [1] [2] [3] A CAS is a package comprising a set of algorithms for performing symbolic manipulations on algebraic objects, a language to implement them, and an environment in which to use the language.
Also, units using engineering notation may appear in the defaults section to define a default output for the unit. A default may specify a unit code or an expression that tests the input value, and which produces one of two different outputs depending on that value.
unit code (alternative) QID symbol or abbrev. notes sample default conversion combinations SI: square kilometre: km2 Q712226: km 2: US spelling: square kilometer: 1.0 km 2 (0.39 sq mi) km2 sqmi; square hectometre: hm2 Q35852: hm 2: US spelling: square hectometer: 1.0 hm 2 (2.5 acres) square decametre: dam2 Q23931040: dam 2: US spelling: square ...
The second meaning of standard unit refers to a unit of particular set of units of measurement called the standard system (versus the metric system). The standard system includes the standard units of the foot, the pound (mass), and the gallon. The United Kingdom and the United States both make, or have in the past made, use of the standard system.