Function approximation

Function approximation using numerical methods:

Using interpolation by "moving" polynomials of the second degree
Using piecewise interpolation by cubic splines with determination of missing boundary conditions by known values of the second derivative at the boundary nodes

Name		Name	Last commit message	Last commit date
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6_1.pro		6_1.pro
6_1.pro.user		6_1.pro.user
README.md		README.md
add.cpp		add.cpp
add.h		add.h
draw.cpp		draw.cpp
draw.h		draw.h
main.cpp		main.cpp
widget.cpp		widget.cpp
widget.h		widget.h
widget.ui		widget.ui

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