# Pages du manuel Linux : Fonctions des bibliothèques

dtprfs
provide error bounds and backward error estimates for the solution to a system of linear equations with a triangular packed coefficient matrix
dtpsv
solve one of the systems of equations A*x = b, or A'*x = b,
dtptri
compute the inverse of a real upper or lower triangular matrix A stored in packed format
dtptrs
solve a triangular system of the form A * X = B or A**T * X = B,
dtrcon
estimate the reciprocal of the condition number of a triangular matrix A, in either the 1-norm or the infinity-norm
dtrevc
compute some or all of the right and/or left eigenvectors of a real upper quasi-triangular matrix T
dtrexc
reorder the real Schur factorization of a real matrix A = Q*T*Q**T, so that the diagonal block of T with row index IFST is moved to row ILST
dtrmm
perform one of the matrix-matrix operations B := alpha*op( A )*B, or B := alpha*B*op( A ),
dtrmv
perform one of the matrix-vector operations x := A*x, or x := A'*x,
dtrrfs
provide error bounds and backward error estimates for the solution to a system of linear equations with a triangular coefficient matrix
dtrsen
reorder the real Schur factorization of a real matrix A = Q*T*Q**T, so that a selected cluster of eigenvalues appears in the leading diagonal blocks of the upper quasi-triangular matrix T,
dtrsm
solve one of the matrix equations op( A )*X = alpha*B, or X*op( A ) = alpha*B,
dtrsna
estimate reciprocal condition numbers for specified eigenvalues and/or right eigenvectors of a real upper quasi-triangular matrix T (or of any matrix Q*T*Q**T with Q orthogonal)
dtrsv
solve one of the systems of equations A*x = b, or A'*x = b,
dtrsyl
solve the real Sylvester matrix equation
dtrti2
compute the inverse of a real upper or lower triangular matrix
dtrtri
compute the inverse of a real upper or lower triangular matrix A
dtrtrs
solve a triangular system of the form A * X = B or A**T * X = B,
dtzrqf
routine is deprecated and has been replaced by routine DTZRZF
dtzrzf
reduce the M-by-N ( M<=N ) real upper trapezoidal matrix A to upper triangular form by means of orthogonal transformations
DualRTPChannel
DualUDPIPv4Socket
A socket class based on two UDP/IPv4 sockets.
dumbnet
dumbnet
DumpActiveMemory
Validated memory allocation interface.
Dumpvalue
provides screen dump of Perl data.
dup
duplicate an open file descriptor
dup2
See dup.3posix
Dynamically load C libraries into Perl code
dynarr
simple dynamic arrays
Dynamic Loading of Extension Nodes When Coin tries to get hold of a node type object (SoType) for a class based on the name string of the node type, it will - if no such node type has been initialized yet - scan the file system for a dynamically loadable extension node with that given name. On UNIX, extensions nodes are regular .so files. On Win32, extension nodes are built as DLLs. On Mac OS X systems, extension nodes are built as .dylib files. Whether the dynamically loadable objects should be named with or without the 'lib' prefix is optional. Both schemes will work.
dysize
Obtenir le nombre de jours pour une année donnée.
dzsum1
take the sum of the absolute values of a complex vector and returns a double precision result
d_bitmap_proc
Dialog procedure drawing a bitmap. Allegro game programming library.
d_box_proc
Dialog procedure drawing boxes onto the screen. Allegro game programming library.
d_button_proc
Dialog procedure implementing a button object. Allegro game programming library.
d_check_proc
Dialog procedure implementing a check box object. Allegro game programming library.
d_clear_proc
Dialog procedure to clear the screen. Allegro game programming library.
d_ctext_proc
See d_text_proc.3alleg
d_edit_proc
Dialog procedure implementing an editable text object. Allegro game programming library.
d_icon_proc
Dialog procedure implementing a bitmap button. Allegro game programming library.
d_keyboard_proc
Invisible dialog procedure for implementing keyboard shortcuts. Allegro game programming library.
d_list_proc
Dialog procedure implementing a list box object. Allegro game programming library.