From 7a4831bd7939dca66e0ad4f3738572eab85ffe62 Mon Sep 17 00:00:00 2001
From: Jing Lin <82669431+linjing-lab@users.noreply.github.com>
Date: Wed, 13 Dec 2023 20:28:31 +0800
Subject: [PATCH] upgrade optimtool

---
 optimtool/__init__.py | 2 +-
 optimtool/_drive.py   | 2 +-
 optimtool/_version.py | 2 +-
 setup.py              | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/optimtool/__init__.py b/optimtool/__init__.py
index 7a40f12..3675a48 100644
--- a/optimtool/__init__.py
+++ b/optimtool/__init__.py
@@ -32,4 +32,4 @@
 from ._version import __version__
 
 if sys.version_info < (3, 7, 0):
-    raise OSError(f'optimtool-2.7.3 requires Python >=3.7, but yours is {sys.version}')
\ No newline at end of file
+    raise OSError(f'optimtool-2.8.0 requires Python >=3.7, but yours is {sys.version}')
\ No newline at end of file
diff --git a/optimtool/_drive.py b/optimtool/_drive.py
index 53a89f0..1d007f0 100644
--- a/optimtool/_drive.py
+++ b/optimtool/_drive.py
@@ -143,7 +143,7 @@ def steihaug(sk: List[int],
             ans = sk
             break
         betak = np.linalg.norm(rk)**2 / np.linalg.norm(r[k])**2
-        pk = - rk + betak * p[k]
+        pk = -rk + betak * p[k]
         k = k + 1
     return ans
 
diff --git a/optimtool/_version.py b/optimtool/_version.py
index b539e1c..f587d31 100644
--- a/optimtool/_version.py
+++ b/optimtool/_version.py
@@ -18,4 +18,4 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 
-__version__ = '2.7.3'
\ No newline at end of file
+__version__ = '2.8.0'
\ No newline at end of file
diff --git a/setup.py b/setup.py
index fa2a9f3..6782b19 100644
--- a/setup.py
+++ b/setup.py
@@ -4,7 +4,7 @@
 from setuptools import setup
 
 if sys.version_info < (3, 7, 0):
-    raise OSError(f'optimtool-2.7.3 requires Python >=3.7, but yours is {sys.version}')
+    raise OSError(f'optimtool-2.8.0 requires Python >=3.7, but yours is {sys.version}')
 
 if (3, 7, 0) <= sys.version_info < (3, 8, 0):
     # https://github.com/pypa/setuptools/issues/926#issuecomment-294369342