Superconductors.md

@@ -18,8 +18,8 @@ To run the model, open `helix.pro` with Gmsh.
 ## Additional information
 
 The model uses a magnetic field formulation and the Gmsh cohomology solver
-[1]. The nonlinear resistivity <math>\rho =
-\frac{E_c}{J_c}\left(\frac{||\vec{J}||}{J_c}\right)^{n-1}</math> in the
+[1]. The nonlinear resistivity $\rho =
+\frac{E_c}{J_c}\left(\frac{||\vec{J}||}{J_c}\right)^{n-1}$ in the
 superconducting filaments is linearized as in [3]. The number and layers of
 superconducting filaments, the twist pitch as well as the radius of the
 conducting matrix are parametrizable, and the model can be solved both in 2D and