nummath.dr

一个完整FFT变换的C代码, 本代码在工程项目中得到了应用的检验. 若哪位发现BUG请通知本人.

			Numerical Mathematical Library

README			Simple Introduction plus revision history
Makefile		Makefile for making the library

		Linear Algebra, Basic Operations
LinAlg.h		Declaration of Matrices, Vectors, etc. over
			real numbers
LAStreams.h		Streams of REALs
matrix1.cc		Level 1 BLAS, element-wise operations
matrix2.cc		Level 2 BLAS, multiplications
matrix_sub.cc		Level 1 & 2 BLAS, Matrix row/col/diag
matrix_inv.cc		Find a matrix inverse
vector.cc		Specific vector operations, Level 1 & 2 BLAS
determinant.cc		Evaluate the determinant of a square matrix

vvector.cc		Verify operations on vectors
vvector.dat		Validation test output

vmatrix.cc		Verify primitive operations on matrices
vmatrix1.cc		Verify less trivial operations (norms, 
			forcing of promises, transpositions)
vmatrix2.cc		Verify multiplication/inv operations on matrices
vlastreams.cc		Verify streams over matrices and vectors
vmatrix.dat		Validation test output
vmatrix1.dat		Validation test output
vmatrix2.dat		Validation test output
vlastreams.dat		Validation test output

sample_adv.cc		Sample code demonstrating a few "advanced" features
sample_adv.dat		and comparisons with the traditional style
sample_ult.cc		Sample code illustrating the use of LAStreams
sample_ult.dat		(operations on triangular blocks of a matrix)

		Numerical Math
math_num.h		Declaration of the routines implementing various
			numerical math algorithms

ali.cc			Interpolation over the table of function values
vali.cc			Verification program
vali.dat		Validation test output

hjmin.cc		Hooke-Jeeves multivariate optimization
vhjmin.cc		Validation code
vhjmin.dat		Validation test run

zeroin.cc		Brent's root finder
fminbr.cc		Brent's one-dimensional minimizer
vzeroin.cc		Verification program
vfminbr.cc		Verification program
vzeroin.dat		Validation test output
vfminbr.dat		Validation test output

svd.h			Singular Value Decomposition
svd.cc			Implementation of the SVD class
vsvd.cc			Verification code
vslesing.cc		Verification of the SVD applications
vsvd.dat		Validation test output
vslesing.dat		Validation test output

		Fast Fourier Transform
fft.h			Declaration of the class FFT
fft_init.cc		Initialization routines
fft_input.cc		Input sequence preprocessing
fft_output.cc		Return the transform in the desired format

vfft.cc			Verification routine
vfft.dat		Test run output