Suggestions for future enhancements are welcome, as are indications of any potential corrections that should be reviewed and implemented. In the interest of keeping the number of submissions manageable, please check to see if your suggestion is already covered by the Possible Future Enhancements listed at the bottom of the “About” page before submitting your feedback. This web calculator does not have support personnel assigned on a full-time basis. Therefore, submissions sent to the email below will likely be reviewed at intervals of several weeks or longer.

Please send all correspondence to libtrwebcalc @

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