Fix equation in docstring

Python-Ensemble-Toolbox · Jul 8, 2024 · b8f5562 · b8f5562
1 parent 751171d
commit b8f5562
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/popt/cost_functions/epf.py b/popt/cost_functions/epf.py
@@ -4,7 +4,7 @@ def epf(r, c_eq=0, c_iq=0):
     r"""
     The external penalty function, given as
     .. math::
-        0.5r(\sum(c_eq^2) + \sum(\max(c_iq,0)^2)
+        0.5r(\sum_i(c_{eq}^2) + \sum(\max(c_{iq},0)^2)
     """
 
     return r*0.5*( np.sum(c_eq**2) + np.sum(np.maximum(-c_iq,0)**2) )