TESTING/MATGEN/zlarge.f(3)

💅 NAME 💅

okay so bestie, this page is for TESTING/MATGEN/zlarge.f, and it’s coming at you from the Library Functions Manual. It’s all about the ZLARGE subroutine, and it’s giving random-unitary-matrix main character energy. periodt. 💖

🦋 SYNOPSIS 🦋

✨ Functions/Subroutines ✨

subroutine zlarge (n, a, lda, iseed, work, info)
    ZLARGE

🌸 Function/Subroutine Documentation 🌸

subroutine zlarge (integer n, complex*16, dimension( lda, * ) a, integer
    lda, integer, dimension( 4 ) iseed, complex*16, dimension( * ) work,
    integer info)
    ZLARGE

🦋 Purpose 🦋

ZLARGE pre- and post-multiplies a complex general n by n matrix A with a random unitary matrix: A = U*D*U'. That’s the whole vibe, and it ate. 💅

🎀 Parameters 🎀

• N — N is INTEGER; it’s the order of the matrix A. N >= 0, no cap.
• A — A is COMPLEX*16 array, dimension (LDA,N). On entry, it’s the original n by n matrix A. On exit, A is overwritten by U*A*U' for some random unitary matrix U. iconic behavior.
• LDA — LDA is INTEGER; it’s the leading dimension of the array A. LDA >= N, fr fr.
• ISEED — ISEED is INTEGER array, dimension (4). On entry, this is the seed of the random number generator; the array elements must be between 0 and 4095, and ISEED(4) must be odd. On exit, the seed is updated. 💫
• WORK — WORK is COMPLEX*16 array, dimension (2*N). That’s the workspace bestie, respect it. 🫶
• INFO — INFO is INTEGER:
  • = 0: successful exit, slay.
  • < 0: if INFO = -i, the i-th argument had an illegal value. not cute. 😭

👑 Author 👑

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

Definition at line 86 of file zlarge.f.

👑 Author 👑

Generated automatically by Doxygen for LAPACK from the source code.

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kisses bestie, this iconic little page is from LAPACK Version 3.12.0, and the source file is TESTING/MATGEN/zlarge.f(3). 💜✨