x,mean,standard_dev!Returns the cumulative lognormal distribution of x, where ln(x) is normally distributed with parameters ...

!x,mean,standard_dev!!Returns the cumulative lognormal distribution of x, where ln(x) is normally distributed with parameters Mean and Standard_dev!is the value at which to evaluate the function, a positive number!is the mean of ln(x)!is the standard deviation of ln(x), a positive number!