Format floating point number

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examples/format/formatted_float.py

x = 412.345678901

print("{:e}".format(x))   #  exponent:     4.123457e+02
print("{:E}".format(x))   #  Exponent:     4.123457E+02
print("{:f}".format(x))   #  fixed point:  412.345679 (default precision is 6)
print("{:.2f}".format(x)) #  fixed point:  412.35 (set precision to 2)
print("{:F}".format(x))   #  same as f.    412.345679
print("{:g}".format(x))   #  generic:      412.346    (default precision is 6)
print("{:G}".format(x))   #  generic:      412.346
print("{:n}".format(x))   #  number:       412.346


print("{}".format(x))     # defaults to g  412.345678901