📅  最后修改于: 2023-12-03 15:29:15.619000             🧑  作者: Mango
\nprec
is a LaTeX command that defines the minimum number of digits that should be displayed after the decimal point in a number. It is used when formatting floating-point numbers in scientific or mathematical documents.
\num[<options>]{<number>}
\num
is a command provided by the siunitx
package that allows you to format numbers according to various styles and settings.
The \nprec
command is part of the <options>
argument. It specifies the number of digits after the decimal point that should be displayed. For example, \num[noprec]{3.14159265359}
would display the number as "3.14159", while \num[noprec]{3.14159265359}
would display the number as "3.14159265".
You can also use \nprec
as a standalone command to set the number of digits for all subsequent \num
commands in the document. For example, \nprec{3}
would set the number of digits to 3, and all subsequent \num
commands would display numbers with 3 digits after the decimal point.
Here are some examples of using the \nprec
command:
\num[noprec]{3.333333333333333}
% Outputs: 3.333333333333333
\num[noprec]{3.333333333333333}\nprec{2}\num[noprec]{3.333333333333333}
% Outputs: 3.333333333333333 3.33 3.333333333333333
\num[noprec]{3.333333333333333}\nprec{1}\num[noprec]{3.333333333333333}
% Outputs: 3.333333333333333 3.3 3.333333333333333
\num[noprec]{3.14159265359}\nprec{5}\num[noprec]{3.14159265359}
% Outputs: 3.14159265359 3.14159 3.14159265359
\nprec
is a useful tool for formatting decimal numbers in LaTeX. It allows you to control the number of digits displayed after the decimal point, and can be used with the \num
command provided by the siunitx
package.