Make small fix regarding parenthesis in output strings and test it in…

… playground

src/api/stringifier.py

@@ -67,7 +67,7 @@ def result_to_str(cls, result: _Result):
 
             string += rf"e{exponent}"
         else:
-            if len(uncertainties) > 0:
+            if len(uncertainties) > 0 and unit != "":
                 string += "("
 
             value_normalized = value.get_abs()
@@ -83,7 +83,7 @@ def result_to_str(cls, result: _Result):
                 if len(uncertainties) > 1:
                     string += rf" ({u.name})"
 
-            if len(uncertainties) > 0:
+            if len(uncertainties) > 0 and unit != "":
                 string += ")"
 
         if has_unit:

src/application/latexer.py

@@ -189,7 +189,7 @@ def _create_latex_str(cls, value: _Value, uncertainties: List[_Uncertainty], uni
 
             latex_str += rf" \cdot 10^{{{exponent}}}"
         else:
-            if len(uncertainties) > 0:
+            if len(uncertainties) > 0 and unit != "":
                 latex_str += "("
 
             value_normalized = value.get_abs()
@@ -202,7 +202,7 @@ def _create_latex_str(cls, value: _Value, uncertainties: List[_Uncertainty], uni
                 if len(uncertainties) > 1:
                     latex_str += rf"_{{\text{{{u.name}}}}}"
 
-            if len(uncertainties) > 0:
+            if len(uncertainties) > 0 and unit != "":
                 latex_str += ")"
 
         if has_unit:

tests/playground.py

@@ -48,7 +48,7 @@
 
 # wiz.standard_sigfigs(3)
 
-wiz.res("f", "1.0e4").print()
+wiz.res("f", "1.0e1", 25e-1).print()
 # f: 1.0
 
 # wiz.res("g", 1.0, sys=0.01, stat=0.02, unit=r"\mm").print()