SRC/claset.f(3)

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version 3.12.1 · 4 versions
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💅 NAME 💅

SRC/claset.f — okay bestie, this is the SRC/claset.f(3) page from the Library Functions Manual, and it's all about the claset subroutine. 💖

✨ SYNOPSIS ✨

Functions/Subroutines

subroutine claset (uplo, m, n, alpha, beta, a, lda)

CLASET initializes the off-diagonal elements and the diagonal elements of a matrix to given values. Periodt. 🫶

🦋 Function/Subroutine Documentation 🦋

💜 subroutine claset (character uplo, integer m, integer n, complex alpha, complex beta, complex, dimension( lda, * ) a, integer lda) 💜

CLASET initializes the off-diagonal elements and the diagonal elements of a matrix to given values. Yes, same iconic line — it's literally the doc. ✨

🎀 Purpose 🎀

CLASET initializes a 2-D array A to BETA on the diagonal and ALPHA on the offdiagonals. No cap. ✨

🌈 Parameters 🌈

  • UPLO — type CHARACTER*1. Specifies the part of the matrix A that gets set:
    • = 'U': the upper triangular part is set. The lower triangle is unchanged.
    • = 'L': the lower triangular part is set. The upper triangle is unchanged.
    • Otherwise: all of the matrix A is set. 💅
  • M — type INTEGER. On entry, M specifies the number of rows of A.
  • N — type INTEGER. On entry, N specifies the number of columns of A.
  • ALPHA — type COMPLEX. All the offdiagonal array elements are set to ALPHA.
  • BETA — type COMPLEX. All the diagonal array elements are set to BETA.
  • A — type COMPLEX array, dimension (LDA,N). On entry, the m by n matrix A. On exit:
    • A(i,j) = ALPHA, 1 <= i <= m, 1 <= j <= n, i.ne.j;
    • A(i,i) = BETA , 1 <= i <= min(m,n)
  • LDA — type INTEGER. The leading dimension of the array A. LDA >= max(1,M). Respect the leading dimension, bestie. 🫶

👑 Author 👑

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

Definition at line 105 of file claset.f.

⭐ Author ⭐

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And we're done, bestie: this page is from SRC/claset.f(3), LAPACK Version 3.12.0. The footer doesn't give us a date, so no invented date here — slay anyway. 💖

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