försöker få felberäkningen att funka

FFT.cc

Header files/PDEsolver.h

PDEsolver.cc

Python files/GenerateData.py

Python files/errorPlot.py

Python files/fel?.png

Python files/inZoomed.png

Python files/ser inte bra ut.png

Text files/3cosFFT.txt

Text files/error files cos/t0_e^cos_N16.0.txt

Text files/error files cos/t0_e^cos_N2.0.txt

Text files/error files cos/t0_e^cos_N32.0.txt

Text files/error files cos/t0_e^cos_N4.0.txt

Text files/error files cos/t0_e^cos_N64.0.txt

Text files/error files cos/t0_e^cos_N8.0.txt

Text files/error files cos/t1_e^cos_N16.0.txt

Text files/error files cos/t1_e^cos_N2.0.txt

Text files/error files cos/t1_e^cos_N32.0.txt

Text files/error files cos/t1_e^cos_N4.0.txt

Text files/error files cos/t1_e^cos_N64.0.txt