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- #ifndef ALGO_HPP
- #define ALGO_HPP
- #include <cmath>
- #include <iostream>
- #include <string>
- using namespace std;
- /*! Thomas algorithm to solve AX=B where A is a tridiagonal matrix
- \param n size of the matrix A
- \param a (n-1) sub-diagonal coefficients of matrix A
- \param b n diagonal coefficients of matrix A
- \param c (n-1) sup-diagonal coefficients of matrix A (modified)
- \param d n coefficients of vector B (modified)
- \param x n coefficients vector to store the result (modified)
- */
- void Thomas(size_t n,double* a,double* b,double* c,double* d,double* x);
- double norm2(double* u,size_t n);
- double error2(double* u,double* v,size_t n);
- void clear(double* u,size_t n);
- void display(string name,double* u,size_t n);
- #endif
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