diff --git a/lib/xmet/thermo.py b/lib/xmet/thermo.py
index c0fe75a..02e800f 100644
--- a/lib/xmet/thermo.py
+++ b/lib/xmet/thermo.py
@@ -64,8 +64,9 @@ def mixing_ratio_temp(ratio: float, pressure: float) -> float:
     w = ratio * 1000.0
     x = math.log10(w * pressure / (622.0 + w))
 
-    return celsius(math.pow(10.0, ((c1 * x) + c2)) - c3 + \
-             (c4 * math.pow((math.pow(10, (c5 * x)) - c6), 2)))
+    temp = (10.0 ** ((c1 * x) + c2)) - c3 + (c4 * ((10 ** (c5 * x)) - c6) ** 2)
+
+    return celsius(temp)
 
 def lcl(temp: float, dewpoint: float) -> float:
     """