arpa-bboard@ucbvax.ARPA (03/07/85)
From: Jerry.Brookshire@CMU-CS-A.ARPA
In a missile-flight-control application (autopilot), we are using Intel
8086/8087's to solve filter equations in software written in PL/M, with
library calls to CEL87.LIB for valu{s involving SIN, COS, ATAN and ASIN,
plus square roots. The run-time constraints were so severe that we initially
used the libraries to build tables prior to launch , and then used table
lookups during flight to enable everything to get done. But now we are running
out of memory space, and need to reduce current usage, so we are considering
alternative algorithms to address this issue. Does anyone have any suggestions
re: what Intel uses in the library, or previous experience with similar
problems. Any help greatly appreciated.
Jerry.Brookshire@cmu-cs-10A