sci note possibilities:
	
		could always be 5 digits.
	
			 1.0000 e+4	 == 10000.0
			 1.0000 e+3  == 1000
			 1.0000 e+2  == 100
			 1.0000 e+1  == 10
			 9.9999 e+0  == 9.9999
			 1.0001 e+1  == 1.1
			 1.0000 e+0  == 1
			
			 9.9999 e-1  == 0.9999	
			 1.0000 e-1  == 0.1
			 1.0000 e-2  == 0.01
			 1.0000 e-3

			 0.0000      == 0.0

			-1.0000 e-3  == -0.001
			-1.0000 e-2  == -0.01
			-1.0000 e-1  == -0.1
			
			-1.0000 e+0  == -1
			-1.0000 e+1  == -1
			-1.0000 e+2  == -1
			-1.0000 e+3  == -1
			

			numpy.format_float_scientific (numpy.float32 (10000.0), unique=True, min_digits=4, precision=15, exp_digits=1)