gusucode.com > symbolic工具箱matlab源码程序 > symbolic/@double/logint.m
function Y = logint(X) % LOGINT Integral logarithm. % Y = LOGINT(X) is the integral logarithm of X. % It is defined as: % LOGINT(x) = integral from 0 to x of 1/log(t) dt. % See also EXPINT. % Copyright 2013 The MathWorks, Inc. Y = sym.useSymForNumeric(@logint, X); end