[gradsusr] integrating with respect to lnp instead of p

[Jonathan Wynn Smith]

Hello:

For an integral with respect to pressure, I can simply use sum(expr,
lev=1000, lev=125), but what about the integrating with respect to lnp
(natural log of pressure) as opposed to p?  Is there an expression for
this.  It does not seem vint works in this case.

Thanks

-- 
*Jonathan Wynn Smith, PhD.*
*Postdoctoral Fellow*
Department of Physics and Astronomy
Howard University
102 Thirkield Building
2355 6th St. NW
Washington DC 20059
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