4,764 research outputs found
ADF95: Tool for automatic differentiation of a FORTRAN code designed for large numbers of independent variables
ADF95 is a tool to automatically calculate numerical first derivatives for
any mathematical expression as a function of user defined independent
variables. Accuracy of derivatives is achieved within machine precision. ADF95
may be applied to any FORTRAN 77/90/95 conforming code and requires minimal
changes by the user. It provides a new derived data type that holds the value
and derivatives and applies forward differencing by overloading all FORTRAN
operators and intrinsic functions. An efficient indexing technique leads to a
reduced memory usage and a substantially increased performance gain over other
available tools with operator overloading. This gain is especially pronounced
for sparse systems with large number of independent variables. A wide class of
numerical simulations, e.g., those employing implicit solvers, can profit from
ADF95.Comment: 24 pages, 2 figures, 4 tables, accepted in Computer Physics
Communication
Moon-Dreams: Where Dreams are made
https://digitalcommons.library.umaine.edu/mmb-vp/5786/thumbnail.jp
To: The Mayor, First Selectman or Town Manager, June 26, 1940.
https://digitalmaine.com/alien_ref/1008/thumbnail.jp
The Sack Waltz
No cover arthttps://scholarsjunction.msstate.edu/cht-sheet-music/10497/thumbnail.jp
To: The Municipal Officers
Letter to Municipal Officers requesting that completed registration be sent to the Intelligence Section of the Adjutant Generals office.https://digitalmaine.com/alien_ref/1015/thumbnail.jp
Reply to letter from W.H. Stevens, August 12, 1940.
https://digitalmaine.com/alien_corresp/1022/thumbnail.jp
Correspondence from H. Metcalf to General Hodsdon
Correspondence from H. Metcalf regarding absent soldiers from Lincoln Count
Correspondence from H. Metcalf to General Hodsdon
Correspondence from H. Metcalf regarding absent soldiers from Lincoln Count
- …