NightCafe AI generated image for "old computers" The classic Fortran routines r1mach (for single precision real numbers), d1mach (for double precision real numbers), and i1mach (for integers) were originally written in the mid-1970s for the purpose of returning basic machine or operating system dependent constants in order to provide portability …| Degenerate Conic
In today's episode of "What where the Fortran dudes in the 1980s thinking?": consider the following code, which can be found in various forms in the two SLATEC quadrature routines dgaus8 and dqnc79: K=I1MACH(14)ANIB=D1MACH(5)*K/0.30102000D0NBITS=ANIB Note that the "mach" routines (more …| Degenerate Conic