/home/abui...IG/ssxt1.f(3)

πŸ“¦ version 3.12.0, in opensuse-leap 16.0

πŸ’– NAME πŸ’–

okay so you found the <pink>Library Functions Manual</pink> page for /home/abui...IG/ssxt1.f(3), and the whole NAME situation is this path, fr:

/home/abuild/rpmbuild/BUILD/lapack-
       static-3.12.0-build/lapack-3.12.0/TESTING/EIG/ssxt1.f

The star of the show is the function SSXT1, and this page is literally all about it. Let’s get into it, bestie. 🫢

🌸 SYNOPSIS 🌸

   Functions/Subroutines
       real function SSXT1 (ijob, d1, n1, d2, n2, abstol, ulp, unfl)
           SSXT1

πŸ¦‹ Function/Subroutine Documentation πŸ¦‹

The full signature is giving main-character energy, and it is exactly:

   real function SSXT1 (integer ijob, real, dimension( * ) d1, integer n1,
       real, dimension( * ) d2, integer n2, real abstol, real ulp, real unfl)
       SSXT1

✨ Purpose ✨

So SSXT1 computes the difference between a set of eigenvalues, and the result comes back as the function value. That’s the whole vibe. The source says it like this, word for word:

!>
!> SSXT1  computes the difference between a set of eigenvalues.
!> The result is returned as the function value.
!>
!> IJOB = 1:   Computes   max { min | D1(i)-D2(j) | }
!>                         i     j
!>
!> IJOB = 2:   Computes   max { min | D1(i)-D2(j) | /
!>                         i     j
!>                              ( ABSTOL + |D1(i)|*ULP ) }
!>

πŸŽ€ Parameters πŸŽ€

  • IJOB β€” IJOB is INTEGER; it specifies the type of tests to be performed. (See above.) πŸ‘‘
  • D1 β€” D1 is REAL array, dimension (N1); this is the first array. D1 should be in increasing order, i.e., D1(j) <= D1(j+1). πŸ’…
  • N1 β€” N1 is INTEGER; this is the length of D1. ✨
  • D2 β€” D2 is REAL array, dimension (N2); this is the second array. D2 should be in increasing order, i.e., D2(j) <= D2(j+1). πŸ¦‹
  • N2 β€” N2 is INTEGER; this is the length of D2. 🌸
  • ABSTOL β€” ABSTOL is REAL; the absolute tolerance, used as a measure of the error. πŸ’–
  • ULP β€” ULP is REAL; machine precision. ⭐
  • UNFL β€” UNFL is REAL; the smallest positive number whose reciprocal does not overflow. πŸ”₯

πŸ’œ Author πŸ’œ

  • Univ. of Tennessee
  • Univ. of California Berkeley
  • Univ. of Colorado Denver
  • NAG Ltd.

πŸ“ Definition check: it lives at line 104 of file ssxt1.f.

πŸ‘‘ Author πŸ‘‘

Generated automatically by Doxygen for LAPACK from the source code.


πŸ’– cute sign-off πŸ’– β€” source/version is LAPACK Version 3.12.0, and the footer path is /home/abui...IG/ssxt1.f(3). Date field? Not shown in the original footer, bestie β€” that’s the whole tea. Byeee! πŸ’…βœ¨

πŸ“¦ where this page comes from