# Pages du manuel Linux : Fonctions des bibliothèques

CRYPTO_set_ex_data
internal application specific data functions
cscal
scales a vector by a constant.
csin
Fonctions sinus complexes.
csin
complex sine functions
csinf
See csin.3posix
csinh
Fonctions sinus hyperboliques complexes.
csinh
complex hyperbolic sine functions
csinhf
See csinh.3posix
csinhl
See csinh.3posix
csinl
See csin.3posix
cspcon
estimate the reciprocal of the condition number (in the 1-norm) of a complex symmetric packed matrix A using the factorization A = U*D*U**T or A = L*D*L**T computed by CSPTRF
cspmv
perform the matrix-vector operation y := alpha*A*x + beta*y,
cspr
perform the symmetric rank 1 operation A := alpha*x*conjg( x' ) + A,
csprfs
improve the computed solution to a system of linear equations when the coefficient matrix is symmetric indefinite and packed, and provides error bounds and backward error estimates for the solution
cspsv
compute the solution to a complex system of linear equations A * X = B,
cspsvx
use the diagonal pivoting factorization A = U*D*U**T or A = L*D*L**T to compute the solution to a complex system of linear equations A * X = B, where A is an N-by-N symmetric matrix stored in packed format and X and B are N-by-NRHS matrices
csptrf
compute the factorization of a complex symmetric matrix A stored in packed format using the Bunch-Kaufman diagonal pivoting method
csptri
compute the inverse of a complex symmetric indefinite matrix A in packed storage using the factorization A = U*D*U**T or A = L*D*L**T computed by CSPTRF
csptrs
solve a system of linear equations A*X = B with a complex symmetric matrix A stored in packed format using the factorization A = U*D*U**T or A = L*D*L**T computed by CSPTRF
csqrt
Racines carrées complexes.
csqrt
complex square root functions
csqrtf
See csqrt.3posix
csqrtl
See csqrt.3posix
csrot
applies a plane rotation, where the cos and sin (c and s) are real and the vectors cx and cy are complex.
csrscl
multiplie an n-element complex vector x by the real scalar 1/a
CSS::Tiny
Read/Write .css files with as little code as possible
cstedc
compute all eigenvalues and, optionally, eigenvectors of a symmetric tridiagonal matrix using the divide and conquer method
cstegr
compute selected eigenvalues and, optionally, eigenvectors of a real symmetric tridiagonal matrix T
cstein
compute the eigenvectors of a real symmetric tridiagonal matrix T corresponding to specified eigenvalues, using inverse iteration
csteqr
compute all eigenvalues and, optionally, eigenvectors of a symmetric tridiagonal matrix using the implicit QL or QR method
csv
Procedures to handle CSV data.
csycon
estimate the reciprocal of the condition number (in the 1-norm) of a complex symmetric matrix A using the factorization A = U*D*U**T or A = L*D*L**T computed by CSYTRF
csymm
perform one of the matrix-matrix operations C := alpha*A*B + beta*C,
csymv
perform the matrix-vector operation y := alpha*A*x + beta*y,
csyr
perform the symmetric rank 1 operation A := alpha*x*( x' ) + A,
csyr2k
perform one of the symmetric rank 2k operations C := alpha*A*B' + alpha*B*A' + beta*C,
csyrfs
improve the computed solution to a system of linear equations when the coefficient matrix is symmetric indefinite, and provides error bounds and backward error estimates for the solution
csyrk
perform one of the symmetric rank k operations C := alpha*A*A' + beta*C,
csysv
compute the solution to a complex system of linear equations A * X = B,
csysvx
use the diagonal pivoting factorization to compute the solution to a complex system of linear equations A * X = B,
csytf2
compute the factorization of a complex symmetric matrix A using the Bunch-Kaufman diagonal pivoting method
csytrf
compute the factorization of a complex symmetric matrix A using the Bunch-Kaufman diagonal pivoting method
csytri
compute the inverse of a complex symmetric indefinite matrix A using the factorization A = U*D*U**T or A = L*D*L**T computed by CSYTRF
csytrs
solve a system of linear equations A*X = B with a complex symmetric matrix A using the factorization A = U*D*U**T or A = L*D*L**T computed by CSYTRF
ctan
Fonctions tangentes complexes.
ctan
complex tangent functions
ctanf
See ctan.3posix
ctanh
Tangentes hyperboliques complexes.
ctanh
complex hyperbolic tangent functions
ctanhf
See ctanh.3posix