diff --git a/FCNC-fitter-constants.md b/FCNC-fitter-constants.md
index bf2cbb8..576dc63 100644
--- a/FCNC-fitter-constants.md
+++ b/FCNC-fitter-constants.md
@@ -1,29 +1 @@
-The constants are saved in constants.hh and constants.cc. 
-
-
-The constants in `constants.cc` are functions either returning a combination of global constants in `constants.hh`, such as
-
-```
-double CTL_RANGE(){ 
-    return CTL_MAX - CTL_MIN; 
-}
-```
-
-or returns values depending on number of bins, either the Q2 edges of the bins or the S and P observables.
-
-It also contains a function returning a vector of strings with the names of the background parameters depending on the folding and the order of the used polynomial. 
-
-In `constants.hh` global variables are included: 
-* Mathematical constants (1 sigma = 0.638, pi, ... )
-* Q2 ranges
-* Angle ranges
-* (LaTeX) names
-* Plotting options
-* PDG masses
-* Mass windows
-* [Particle IDs](http://pdg.lbl.gov/2019/reviews/rpp2019-rev-monte-carlo-numbering.pdf)
-* Angular correction orders
-* Weighting options
-* Parameter values
-* Quite some obsolete constants from the Kspi+ analysis
-
+dfd
\ No newline at end of file