Precision of computation
- To: mathgroup at smc.vnet.net
- Subject: [mg38336] Precision of computation
- From: Steve Gray <stevebg at adelphia.net>
- Date: Thu, 12 Dec 2002 01:36:19 -0500 (EST)
- Sender: owner-wri-mathgroup at wolfram.com
I don't quite get it about precision. If I do $MaxPrecision=$MinPrecision=50, does that mean that all computations following that in the whole notebook will be done to 50 decimal places? (Assuming that the precision is not changed explicitly after that.) If that doesn't do it, how can I make that happen? Do I have to put lots of zeroes in every constant I enter? (The exact value of these doesn't matter but once they are entered, the computation itself must be very exact. This computation is to verify an extremely complicated identity.) It's probable that my computations are being limited by insufficient precision and the easiest thing to do is just up it drastically everywhere in the notebook. Thank you for any answers.