# NAG CL InterfaceF04 (Linsys)Simultaneous Linear Equations

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F04 (Linsys) Chapter Introduction – A description of the Chapter and an overview of the algorithms available.

Function
Mark of
Introduction

Purpose
f04bac 8 nag_linsys_real_square_solve
Computes the solution, estimated condition number and error-bound to a real system of linear equations
f04bbc 8 nag_linsys_real_band_solve
Computes the solution, estimated condition number and error-bound to a real banded system of linear equations
f04bcc 8 nag_linsys_real_tridiag_solve
Computes the solution, estimated condition number and error-bound to a real tridiagonal system of linear equations
f04bdc 8 nag_linsys_real_posdef_solve
Computes the solution, estimated condition number and error-bound to a real symmetric positive definite system of linear equations
f04bec 8 nag_linsys_real_posdef_packed_solve
Computes the solution, estimated condition number and error-bound to a real symmetric positive definite system of linear equations, packed storage
f04bfc 8 nag_linsys_real_posdef_band_solve
Computes the solution, estimated condition number and error-bound to a real symmetric positive definite banded system of linear equations
f04bgc 8 nag_linsys_real_posdef_tridiag_solve
Computes the solution, estimated condition number and error-bound to a real symmetric positive definite tridiagonal system of linear equations
f04bhc 8 nag_linsys_real_symm_solve
Computes the solution, estimated condition number and error-bound to a real symmetric system of linear equations
f04bjc 8 nag_linsys_real_symm_packed_solve
Computes the solution, estimated condition number and error-bound to a real symmetric system of linear equations, packed storage
f04cac 8 nag_linsys_complex_square_solve
Computes the solution, estimated condition number and error-bound to a complex system of linear equations
f04cbc 8 nag_linsys_complex_band_solve
Computes the solution, estimated condition number and error-bound to a complex banded system of linear equations
f04ccc 8 nag_linsys_complex_tridiag_solve
Computes the solution, estimated condition number and error-bound to a complex tridiagonal system of linear equations
f04cdc 8 nag_linsys_complex_posdef_solve
Computes the solution, estimated condition number and error-bound to a complex Hermitian positive definite system of linear equations
f04cec 8 nag_linsys_complex_posdef_packed_solve
Computes the solution, estimated condition number and error-bound to a complex Hermitian positive definite system of linear equations, packed storage
f04cfc 8 nag_linsys_complex_posdef_band_solve
Computes the solution, estimated condition number and error-bound to a complex Hermitian positive definite banded system of linear equations
f04cgc 8 nag_linsys_complex_posdef_tridiag_solve
Computes the solution, estimated condition number and error-bound to a complex Hermitian positive definite tridiagonal system of linear equations
f04chc 8 nag_linsys_complex_herm_solve
Computes the solution and error-bound to a complex Hermitian system of linear equations
f04cjc 8 nag_linsys_complex_herm_packed_solve
Computes the solution, estimated condition number and error-bound to a complex Hermitian system of linear equations, packed storage
f04dhc 8 nag_linsys_complex_symm_solve
Computes the solution, estimated condition number and error-bound to a complex symmetric system of linear equations
f04djc 8 nag_linsys_complex_symm_packed_solve
Computes the solution, estimated condition number and error-bound to a complex symmetric system of linear equations, packed storage
f04mcc 1 nag_linsys_real_posdef_vband_solve
Approximate solution of real symmetric positive definite variable-bandwidth simultaneous linear equations (coefficient matrix already factorized by f01mcc)
f04ydc 24 nag_linsys_real_gen_norm_rcomm
Norm estimation (for use in condition estimation), real rectangular matrix
f04zdc 24 nag_linsys_complex_gen_norm_rcomm
Norm estimation (for use in condition estimation), complex rectangular matrix