further normalize floating-point constants

Base/Py/PyFmt.cpp

@@ -92,7 +92,7 @@ std::string printNm2(double input)
     return inter.str();
 }
 
-// 1.000000e7 -> 1.0e7
+// 1.000000e7 -> 1e7
 std::string printScientificDouble(double input)
 {
     std::ostringstream inter;

Examples/scatter2d/ConstantBackground.py

@@ -15,7 +15,7 @@ def get_simulation(sample):
     beam = ba.InBeam(1e6, 0.1*nm, 0.2*deg)
     detector = ba.SphericalDetector(bp.simargs['n'], 2*deg, 1*deg, 1*deg)
     simulation = ba.ScatteringSimulation(beam, sample, detector)
-    background = ba.ConstantBackground(1.0e3)
+    background = ba.ConstantBackground(1e3)
     simulation.setBackground(background)
     return simulation