void loglog (xori, xmax, yori, ymax) LOGPLT.C Level 2
 
float xori  The value of x at the left-hand end of the x axis.
float xmax  The value of x at the right-hand end of the x axis.
float yori  The value of y at the bottom of the y axis.
float ymax  The value of y at the top of the y axis.
 
loglog() is used to make user-scaled log-log plots. xori, xmax, yori, and ymax need not be even decades 
but they should have only one significant figure (e.g., 2., .03, 500., ...).