TESTING/LIN/slatb4.f(3)

💖 TESTING/LIN/slatb4.f(3) 💖

From the Library Functions Manual — welcome to the group chat, bestie. ✨

🏷️ NAME

TESTING/LIN/slatb4.f

📜 SYNOPSIS

🧩 Functions/Subroutines

subroutine slatb4 (path, imat, m, n, type, kl, ku, anorm, mode, cndnum, dist)

SLATB4

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📚 Function/Subroutine Documentation

   subroutine slatb4 (character*3 path, integer imat, integer m, integer n,
       character type, integer kl, integer ku, real anorm, integer mode, real
       cndnum, character dist)

SLATB4 — okay so this is the whole main-character subroutine, no cap. 💅

🎯 Purpose

Bestie, SLATB4 sets parameters for the matrix generator based on the type of matrix to be generated. That's literally the assignment. ✨

🎛️ Parameters

• PATH — it's CHARACTER*3, and it's the LAPACK path name. 🛣️
• IMAT — it's INTEGER; an integer key describing which matrix to generate for this path. 🔑
• M — it's INTEGER; the number of rows in the matrix to be generated. 📏
• N — it's INTEGER; the number of columns in the matrix to be generated. 📐
• TYPE — it's CHARACTER*1; the type of the matrix to be generated:
  • = 'S': symmetric matrix
  • = 'P': symmetric positive (semi)definite matrix
  • = 'N': nonsymmetric matrix
• KL — it's INTEGER; the lower band width of the matrix to be generated. ⬇️
• KU — it's INTEGER; the upper band width of the matrix to be generated. ⬆️
• ANORM — it's REAL; the desired norm of the matrix to be generated. The diagonal matrix of singular values or eigenvalues is scaled by this value. 🧮
• MODE — it's INTEGER; a key indicating how to choose the vector of eigenvalues. 🔑
• CNDNUM — it's REAL; the desired condition number. 🔢
• DIST — it's CHARACTER*1; the type of distribution to be used by the random number generator. 🎲

👑 Author

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

Definition at line 118 of file slatb4.f. 📍

✨ Author ✨

Generated automatically by Doxygen for LAPACK from the source code. 🤖

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🌈 That's the whole page, bestie! This is LAPACK, Version 3.12.0, and the page is TESTING/LIN/slatb4.f(3). Slay and goodbye! 💖🎀