DOC fix the equation in gaussian_process.kernels.ExpSineSquared
@@ -1512,7 +1512,8 @@ class ExpSineSquared(StationaryKernelMixin, NormalizedKernelMixin, Kernel):
parameter periodicity>0. Only the isotropic variant where l is a scalar is
supported at the moment. The kernel given by:
- k(x_i, x_j) = exp(-2 sin(\pi / periodicity * d(x_i, x_j)) / length_scale)^2
+ k(x_i, x_j) =
+ exp(-2 (sin(\pi / periodicity * d(x_i, x_j)) / length_scale) ^ 2)
.. versionadded:: 0.18
