LineIndent is an option for Style and Cell that specifies how many ems of indentation to add at the beginnings of lines for each level of nesting in an expression.
LineIntegralConvolutionScale is an option to LineIntegralConvolutionPlot and related functions that determines the scale of the line integral convolution to be used.
LinkCreate["name"] creates a MathLink link with the specified name for another program to connect to. LinkCreate[] creates a MathLink link and picks an unused name for the ...
LinkLaunch["prog"] starts the external program prog and opens a MathLink connection to it.
LinkObject["name", n_1, n_2] is an object that represents an active MathLink connection for functions such as LinkRead and LinkWrite.
LinkPatterns[link] gives a list of the patterns for which definitions were set up when the external program associated with the specified MathLink connection was installed.
LinkRead[link] reads one expression from the specified MathLink connection. LinkRead[link, h] wraps h around the expression read before evaluating it.
LinkReadyQ[link] tests whether there is an expression ready to read from the specified MathLink connection. LinkReadyQ[link, t] waits for up to t seconds to see if an ...
Links
(Built-in Mathematica Symbol) Links[] gives a list of all MathLink connections that are currently open. Links[patt] lists only links whose names match the specified string pattern.
LinkWrite[link, expr] writes expr to the specified MathLink connection.