Spline interpolation using Fortran

spline interpolation is a form of interpolation where the interpolant is a special type of piecewise polynomial called a spline.

reference URL : https://en.wikipedia.org/wiki/Spline_interpolation

inverse matrix is calculated using "row reduction" also as known "Gaussian elimination".

reference URL : https://en.wikipedia.org/wiki/Gaussian_elimination

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git clone https://github.com/masa982/Spline_interpolation.git
gfortran -c sweep_sub.f90
gofortran sweep_sub.o test2.f90
./a.out

or

git clone https://github.com/masa982/Spline_interpolation.git
make

if you want to interpolate your data file, Please change data.dat

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