langb Interface

public interface langb

LANGB returns the value of the one norm, or the Frobenius norm, or the infinity norm, or the element of largest absolute value of an n by n band matrix A, with kl sub-diagonals and ku super-diagonals.

Functions

public function clangb(norm, n, kl, ku, ab, ldab, work)

Arguments

Type	Intent	Optional	Attributes		Name
character(len=1),	intent(in)			::	norm
integer(kind=ilp),	intent(in)			::	n
integer(kind=ilp),	intent(in)			::	kl
integer(kind=ilp),	intent(in)			::	ku
complex(kind=sp),	intent(in)			::	ab(ldab,*)
integer(kind=ilp),	intent(in)			::	ldab
real(kind=sp),	intent(out)			::	work(*)

Return Value real(kind=sp)

public function dlangb(norm, n, kl, ku, ab, ldab, work)

Arguments

Type	Intent	Optional	Attributes		Name
character(len=1),	intent(in)			::	norm
integer(kind=ilp),	intent(in)			::	n
integer(kind=ilp),	intent(in)			::	kl
integer(kind=ilp),	intent(in)			::	ku
real(kind=dp),	intent(in)			::	ab(ldab,*)
integer(kind=ilp),	intent(in)			::	ldab
real(kind=dp),	intent(out)			::	work(*)

Return Value real(kind=dp)

public function slangb(norm, n, kl, ku, ab, ldab, work)

Arguments

Type	Intent	Optional	Attributes		Name
character(len=1),	intent(in)			::	norm
integer(kind=ilp),	intent(in)			::	n
integer(kind=ilp),	intent(in)			::	kl
integer(kind=ilp),	intent(in)			::	ku
real(kind=sp),	intent(in)			::	ab(ldab,*)
integer(kind=ilp),	intent(in)			::	ldab
real(kind=sp),	intent(out)			::	work(*)

Return Value real(kind=sp)

public function zlangb(norm, n, kl, ku, ab, ldab, work)

Arguments

Type	Intent	Optional	Attributes		Name
character(len=1),	intent(in)			::	norm
integer(kind=ilp),	intent(in)			::	n
integer(kind=ilp),	intent(in)			::	kl
integer(kind=ilp),	intent(in)			::	ku
complex(kind=dp),	intent(in)			::	ab(ldab,*)
integer(kind=ilp),	intent(in)			::	ldab
real(kind=dp),	intent(out)			::	work(*)

Return Value real(kind=dp)

Module Procedures

public interface stdlib_clangb()

Arguments

None

public interface stdlib_dlangb()

Arguments

None

public interface stdlib_slangb()

Arguments

None

public interface stdlib_zlangb()

Arguments

None