SurdText 指令

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SurdText( <數值> )

建立文字物件並以 \frac{a+b\sqrt{c}}{d} 形式表示此 <數值>。

範例：

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.

範例：

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}.; 範例：
SurdText((2.414213562373095, 1.414213562373095)) creates (1 + \sqrt{2}, \sqrt{2})

備註：

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.

範例： SurdText(1.23456789012345) returns 1.23456789012345.