Update benchmarks.py

HyperSphere/test_functions/benchmarks.py

@@ -3,7 +3,7 @@ import torch
 from torch.autograd import Variable
 
 
-def bird(x):
+def birdy(x):
 	flat = x.dim() == 1
 	if flat:
 		x = x.view(1, -1)
@@ -274,4 +274,4 @@ rotatedstyblinskitang.dim = 0
 def generate_orthogonal_matrix(ndim):
 	x = torch.exp(torch.sin(torch.linspace(-ndim ** 0.5, ndim ** 0.5, ndim)))
 	gram_mat = torch.exp(-(x.unsqueeze(1).repeat(1, ndim) - x.unsqueeze(0).repeat(ndim, 1)) ** 2)
-	return torch.qr(gram_mat)[0]
\ No newline at end of file
+	return torch.qr(gram_mat)[0]