ROOT Forum

Topic	Replies	Views	Activity
Newbie forum for when you're not sure News If you’re new to ROOT, C++, data analysis etc, and you hesitate to ask your question, then please ask it in the Newbie section, where nice people help and we have special rules to be more welcoming. Don’t hesitate, jus…	4	19573	February 19, 2025
Welcome to the ROOT forum! News	1	8306	February 10, 2017
Best practices for solving overdetermined systems of linear equations Newbie math	0	3	May 28, 2026
Clipping distance in REve visualisation ROOT	6	46	May 27, 2026
TCut in event loop ROOT	5	38	May 21, 2026
Silent crash when adding key to nlohmann::json object with semicolon omitted ROOT bug , cling	5	86	May 21, 2026
How to write multiple ragged columns with same count variable into RNTuple? ROOT root	1	35	May 21, 2026
ROOT 6.40.00 LTS is out! 🚀 News	1	44	May 20, 2026
Exploring RNTuple network streaming via Apache Arrow Flight ROOT python , root	6	51	May 19, 2026
Add together an arbitrary number of signals plus background Newbie	2	54	May 18, 2026
Residual kinetic energy of Li7 from TrackSrim in Garfield++ Garfield++	3	51	May 16, 2026
Not able to build root from source in ubuntu toolbx (podman container) image Newbie build , root	7	63	May 15, 2026
How to correctly scale title size and tick size across pads? Newbie graphics , root	1	34	May 12, 2026
Trying simulationo of the hole(mesh) in the garfield++ Garfield++ root	13	129	May 24, 2026
How to calculate nuclear stopping energy in gas Garfield++	5	77	May 23, 2026
Warning from TLegend and how to solve it ROOT graphics , root	17	50	May 22, 2026
RooFit variables not recognised Newbie	3	64	May 8, 2026
Type name error after RNTuple Merging ROOT root	7	58	May 18, 2026
Homebrew and TUnfold how to? ROOT	8	67	May 18, 2026
Error in <TBufferFile::WriteByteCount>: bytecount too large (more than 1073741822): TMVA TMVA	1	30	May 1, 2026
chi2FitTo not limited by limiting range Roofit and RooStats	7	50	May 14, 2026
Could not create the Minuit2 minimizer Newbie	22	123	April 30, 2026
ROOT 6.26.18 and 6.28.14 binary distributions Python problems ROOT python	2	53	May 14, 2026
TBufferMerger fails to write histograms to output file for Alma Linux ROOT hist	9	89	May 11, 2026
ROOT 6.36.12 is out! News releases	1	64	April 27, 2026
About TF1 interface and the fitting function for the ROOT::Fit::Fitter Newbie	3	59	April 27, 2026
TRotation in a Tree Newbie	4	49	April 26, 2026
Creating a custom gas with imported transport data Garfield++	13	96	May 8, 2026
There is GraphicalCut button in ROOT 6.38 WebUI ROOT	4	52	April 24, 2026
Find which lib to link against Newbie	3	34	April 24, 2026

Newbie forum for when you're not sure

If you’re new to ROOT, C++, data analysis etc, and you hesitate to ask your question, then please ask it in the Newbie section, where nice people help and we have special rules to be more welcoming. Don’t hesitate, jus…