SurdText Command

SurdText( <Number> )

Creates text representation of the number in the form \(\frac{a+b\sqrt{c}}\{d}\).

Examples:

  • SurdText(2.414213562373095) creates \(1 + \sqrt{2}\)

  • SurdText(2.439230484541326) creates \(\frac{7+3 \sqrt{3} }\{5}\)

SurdText( <Number>, <List> )

Creates text representation of the number as multiples of the constants in the list. If the list is empty it uses a list of common constants.

Examples:

  • SurdText(3.718281828459045, {exp(1)}) creates \(e + 1\)

  • SurdText(5.382332347441762, {sqrt(2), sqrt(3), sqrt(5)}) creates \( \sqrt{5} + \sqrt{3} + \sqrt{2}\)

  • SurdText(1.693147180559945, {ln(2)}) creates \( \ln(2) + 1\)

SurdText( <Point> )

Creates text representation of the point, where coordinates are in the form \(\frac{a+b\sqrt{c}}\{d}\).

SurdText((2.414213562373095, 1.414213562373095)) creates (\(1 + \sqrt{2}, \sqrt{2})\)

Notes:

  • In order to use this command in a Text object, the option LaTeX Formula needs to be enabled in the Text tab of the Menu-options.svg Properties Dialog of the text.

  • Since this command works with a rounded decimal number as input, sometimes the result will be unexpected.

  • If a suitable answer can’t be found, the number will be returned.

SurdText(1.23456789012345) returns 1.23456789012345.