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SWAG Programming Reference

Madagascar Programming Reference Manual

KAUST
Mohammad Akbar Zuberi

Contents
Preface
Introduction
An example: Finite-Difference modeling
- Introduction
- C program
- Explanation of the code
Data types
- Data types
Preparing for input
- Convenience allocation programs (alloc.c)
- Simbol Table for parameters (simtab.c)
- Parameter handling (getpar.c)
Operations with RSF files
- Main operations with RSF files (file.c)
- Additional operations with RSF files (files.c)
- Complex number operations (komplex.c)
Error handling
- Handling warning and error messages (error.c)
  - sf_error
  - sf_warning
Linear operators
- Introduction
- Adjoint zeroing (adjnull.c)
  - sf_adjnull
  - sf_cadjnull
- Identity operator (copy.c)
  - sf_copy_lop
- Identity operator (complex data) (ccopy.c)
  - sf_ccopy_lop
- Simple mask operator (mask.c)
- Simple weight operator (weight.c)
- 1-D finite difference (igrad1.c)
  - sf_igrad1_lop
- Causal integration (causint.c)
  - sf_causint_lop
- Chaining linear operators (chain.c)
- Dot product test for linear operators (dottest.c)
  - sf_dot_test
Data analysis
- FFT (kiss_fftr.c)
- Cosine window weighting function (tent2.c)
  - sf_tent2
- Anisotropic diffusion, 2-D (impl2.c)
Filtering
- Frequency-domain filtering (freqfilt.c)
- Frequency-domain filtering in 2-D (freqfilt.c)
- Helical convolution (helicon.c)
  - sf_helicon_init
  - sf_helicon_lop
- Helical filter definition and allocation (helix.c)
- Recursive convolution (polynomial division) (recfilt.c)
- Cosine Fourier transform (cosft.c)
Solvers
- Banded matrix solver (banded.c)
- Claerbout's conjugate-gradient iteration (cgstep.c)
  - sf_cgstep
  - sf_cgstep_close
    - Call
    - Definition
- Conjugate-gradient with shaping regularization (conjgrad.c)
- CG with preconditioning (conjprec.c)
- CG iteration (complex data) (cgstep.c)
- Conjugate-gradient with shaping regularization for complex numbers (cconjgrad.c)
- Conjugate-direction iteration (cdstep.c)
- Linked list for use in conjugate-direction-type methods (llist.c)
- Conjugate-direction iteration for complex numbers (ccdstep.c)
- Linked list for CD-type methods (complex data) (clist.c)
- Solving quadratic equations (quadratic.c)
  - sf_quadratic_solve
- Zero finder (fzero.c)
  - sf_zero
- Runge-Kutta ODE solvers (runge.c)
- Solver function for iterative least-squares optimization (tinysolver.c)
  - sf_tinysolver
- Solver functions for iterative least-squares optimization (bigsolver.c)
- Weighting for iteratively-reweighted least squares (irls.c)
- Tridiagonal matrix solver (tridiagonal.c)
Interpolation
- 1-D interpolation (int1.c)
- 2-D interpolation (int2.c)
- 3-D interpolation (int3.c)
- Basic interpolation functions (interp.c)
- Convert data to B-spline coefficients by fast B-spline transform (prefilter.c)
- B-spline interpolation (spline.c)
- Inverse linear interpolation (stretch.c)
- 1-D ENO interpolation (eno.c)
- ENO interpolation in 2-D (eno2.c)
- 1-D ENO power-p interpolation (pweno.c)
Smoothing
- 1-D triangle smoothing as a linear operator (triangle1.c)
- 2-D triangle smoothing as a linear operator (triangle2.c)
- Triangle smoothing (triangle.c)
- Smooth gradient operations (edge.c)
Ray tracing
- Cell ray tracing (celltrace.c)
- Cell ray tracing (cell.c)
General tools
- First derivative FIR filter (deriv.c)
- Computing quantiles by Hoare's algorithm (quantile.c)
  - sf_quantile
- Pseudo-random numbers: uniform and normally distributed (randn.c)
- Evaluating mathematical expressions (math1.c)
Geometry
- Construction of points (point.c)
- Construction of vectors (vector.c)
- Conversion between line and Cartesian coordinates of a vector (decart.c)
- Axes (axa.c)
Miscellaneous
- sharpening (sharpen.c)
- Sharpening inversion added Bregman iteration (sharpinv.c)
  - sf_csharpinv
  - sf_sharpinv
System
- Priority queue (heap sorting) (pqueue.c)
- Simplified system command (system.c)
  - sf_system
- Generic stack (FILO) structure operations (stack.c)
Index
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2011-07-02