# SurdText 指令

##### 指令分類 （所有指令）

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

• SurdText(2.414213562373095) creates 1 + \sqrt{2}
• SurdText(2.439230484541326) creates \frac{7+3 \sqrt{3} }{5}
SurdText( <數值>, <串列> )
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.

• 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( <點> )
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})

• 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.

• GeoGebra
• Help
• Partners
• Feedback & Questions
• This email address is being protected from spambots. You need JavaScript enabled to view it.
• +43 677 6137 2693