[Tutor] BMI calc

[Peter Otten]

Shall, Sydney wrote:

> I am also a newbie, but I wish to learn, so I offer the following 
> corrections.

> # Note. I do note know what units you are using.
> # I would use scientific, metric units. So you need to divide both 
> weight and height by a suitable conversion factors.
> # Then you will not need the number 703.0, and the units in the second 
> and third lines would be Kg/m. [Kilogram/Metre)
> 
> def calc_BMI(weight,height):
>      bmi = (weight/(height*height))*703.0
>      print 'Your BMI is : ', BMI 'weight units/height units.' # You need 
to put the correct text here.
>      if bmi <=18.5:
>          print 'underweight'
>      if  18.5 <= bmi <= 24.9:
>          print 'normal weight'
>      if  25.0 <= bmi <= 29.9:
>          print 'overweight'
>      if bmi >= 30:
>          print 'obese'
>      return

A problem that I have not seen addressed yet:

What will this print for the guy who is 75.0 in high and weighs 200.0 lb?

His bmi is

>>> height = 75.0
>>> weight = 200.0
>>> weight/(height*height)*703.0
24.995555555555555

That's neither normal nor overweight, according to your categorisation.