Engineering and Scientific Subroutine Library: Guide and reference
IBM Corporation, 1988 - Computer software - 821 pages
The Engineering and Scientific Subroutine Library (ESSL) is a set of high performance mathematical subroutines that can be used with FORTRAN, assembler language, and APL2 programs operating under an MVS or VM operating system.
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ConvolutionsCorrelations Subroutines _ 640
Designing Your Program
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array containing numbers assembler language aux2 band matrix Call Statement calling sequence column complex numbers compressed matrix storage Computational Errors condition number conjugate transpose data type indicated deﬁned deﬁnite dot product eigenvalues eigenvectors Error Conditions error handling error message error option table ERRSET ESSL error ESSL Release ESSL subroutines example shows factorization ﬁrst forma formb FORTRAN FORTRAN Version fullword integer Function Gaussian elimination group B processors Hermitian matrix INCX Y INCY indicated in Table INDX Input Argument Errors iopt iparm(3 ipvt iterative leading dimension length Linear Algebra Linear Algebra Subprograms matrix multiplication matrix storage mode matrix transpose naux number of elements one-dimensional array Output packed storage mode positive definite Positive Definite Symmetric problem real and complex reference return code Short-precision real sparse matrix sparse vector Speciﬁed Statement and Input stored in compressed stride for vector symmetric matrix Syntax triangular matrix tridiagonal matrix vector storage mode