SpeQ Mathematics 3.4 (Released 2010-04-07)

(new) Function Run(filename) added, which evaluates the contents of a speq file. This way you can easily include a file with your own commonly used variables, functions, and units into all of your worksheets.

(new) Function AddUnit(name {, relation}{,prefixtype}). You can now add your own custom units too.

(new) Operator In for units, "x In unit". This operator is the same as function Convert(x, unit). The operator In supports lists, and the function Convert not. Example usage: "5.1 Inch In Meter", "10 °C In °F", etc.

(new) Function fnSolve(f(x) {, x} {, xstart}), to find zero points of a function.

(new) Binary SI units for calculations with bits and bytes.

(new) Units fully support exponent suffixes now, fore example "mm2" is interpreted as square millimeter, and "m3" as cubic meter.

(new) Added units: Angstrom, mil, sqmil.

(changed) Implicit multiplications with units now have lower precedence than explicit multiplication and division. So for example "12V/6A" is now calculated as "(12*V)/(6*A) = 2 Ohm" instead of "((12*V)/6)*A = 2 W".

(changed) Function factorial (x!) is now much faster for decimal values.

(changed) Some changes in the arrangement of functions and units in the Functions window.

(changed) The accuracy optimizer is improved. For example Cos(90 deg) now gives 0 instead of 7.273641325e-16.

(changed) Adding and subtracting temperatures is now only allowed with the same temperature scale (for example 20 Celsius + 5 Celsius) or in Kelvin (for example 20 Celsius + 5 Kelvin), to prevent conversion issues.

(changed) SpeQ uses a different degree (°) character now, which is supported by more different fonts and by the web. This character is not backwards compatible.

(fixed) Bug with calculating Atan2 and Arg when Angles was set to Degrees or Gradians.

(fixed) SpeQ crashed when you opened more than 9 functions in one graph.

(fixed) Some problems with non-Western fonts.

(fixed) Units: small rounding error in the unit foot and mile.

(fixed) Units Litre and L now support prefixes.

(fixed) Problem loading files with a dot in the name.

(fixed) SpeQ checks now at startup whether the stored window position fits in the current screen dimensions. If not, the position is adjusted.

(fixed) Various stability issues, and other small improvements.