diff --git a/paper.md b/paper.md
index 4ee60eea7e134f10ce14373e4a7b96f835da2349..e17590698fe936cdb07cfe7b860d0521e35cc703 100755
--- a/paper.md
+++ b/paper.md
@@ -74,7 +74,7 @@ In all cases using Adaptive results in a higher fidelity plot.
 
 #### We provide a reference implementation, the Adaptive package, and demonstrate its performance.
 We provide a reference implementation, the open-source Python package called Adaptive [@Nijholt2019], which has previously been used in several scientific publications [@Vuik2018; @Laeven2019; @Bommer2019; @Melo2019].
-It has algorithms for $f \colon \R^N \to \R^M$, where $N, M \in \mathbb{Z}^+$ but which work best when $N$ is small; integration in $\R$; and the averaging of stochastic functions.
+It has algorithms for $f \colon R^N \to \R^M$, where $N, M \in \mathbb{Z}^+$ but which work best when $N$ is small; integration in $\R$; and the averaging of stochastic functions.
 Most of our algorithms allow for a customizable loss function with which one can adapt the sampling algorithm to work optimally for different classes of functions.
 It integrates with the Jupyter notebook environment as well as popular parallel computation frameworks such as `ipyparallel`, `mpi4py`, and `dask.distributed`.
 It provides auxiliary functionality such as live-plotting, inspecting the data as the calculation is in progress, and automatically saving and loading of the data.