dbr@cybvax0.UUCP (Douglas Robinson) (04/28/86)
I am interested in a set of "C" language functions, suitable for linking to analytical programs, which perform complex number operations. I am interested in the fullest set possible. Some time ago (late 1984?) I saw reference to such a treasure on USENET, in net.physics or net.math. If the library refered to can be resurrected and mailed to me, I would greatly appreciate it. Douglas Robinson Jobs don't kill programmers... programmers kill jobs! The Foxboro Company MS-04-3A 617/543-8750 38 Neponset Avenue foxvax5!dbr Foxboro, MA 02035 -- Doug Robinson Jobs don't kill programmers... programmers kill jobs! 617/492-8810 ...!{mit-eddie, harvard, mirror}!cybvax0!dbr
wcs@ho95e.UUCP (#Bill_Stewart) (05/02/86)
In article <1032@cybvax0.UUCP> dbr@foxvax5.UUCP (Douglas Robinson) writes: >I am interested in a set of "C" language functions, suitable for >linking to analytical programs, which perform complex number >operations. ..... >Some time ago (late 1984?) I saw reference to such a treasure on >USENET, in net.physics or net.math. If the library refered to can >be resurrected and mailed to me, I would greatly appreciate it. Such libraries can be useful, but a much better approach is to get C++, which allows you to define your own data types, and overload the standard operators to work with them. Program development is a lot faster when you can write z0 = z1 + z2 * z3 * 3.141592; instead of z0 = c_add( z1, c_mul( c_mul( z2, z3 ), r_to_c( 3.141592 ))); Your programs also run faster because the complex functions can be expanded in-line at compile time instead of using function calls. The standard c++ libraries around here include data types for complex numbers, character strings, and arrays with whole-array-at-once operators. -- # Bill Stewart, AT&T Bell Labs 2G-202, Holmdel NJ 1-201-949-0705 ihnp4!ho95c!wcs