r2rs-nmath is used at run time in 12 crates. It is a direct run-time dependency in 10 crates. It's used only as a dev dependency in 3 crates.

Depender (with downloads and own rev deps) r2rs-nmath version
7 strafe-testing ~0.1
7 r2rs-stats ~0.1
6 r2rs-base ~0.1
5 r2rs-rfit ~0.1
2 strafe-tests ~0.1
r2rs ~0.1
4 r2rs-mass ~0.1
2 strafe-distribution ~0.1
2 strafe-plot ~0.1
1 strafe-numerics ~0.1