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}.

Example:

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 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.

Example: SurdText[1.23456789012345] returns 1.23456789012345.

• See also the FractionText and ScientificText commands.