
pl_setcontlabelformat: Set format of numerical label for contours

DESCRIPTION:

    This function is used example 9. 

SYNOPSIS:

pl_setcontlabelformat(lexp, sigdig)

ARGUMENTS:

    lexp (PLINT, input) :    If the contour numerical label is greater
    than 10^(lexp) or less than 10^(-lexp), then the exponential
    format is used.  Default value of lexp is 4. 

    sigdig (PLINT, input) :    Number of significant digits.  Default
    value is 2. 
