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+--- Thread: How to build this code ?? (/thread-3810.html)
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How to build this code ?? - aquila - Jun-26-2017
I would like some HELP!!
I want to make a simple noob function before put into my django project.
I want a function that provides the lamp power of a room.
Input: The room's area (m²)
Output: The lamp power (W).
The rules of this math is:
If the entry area is <= 6m² then the power will be 100W (easy).
If the area is > 6m² then for the first 6m² the power is 100W, BUT for the next 4m² is added 60W to the lamp power.
Ex: Area = 20m²
6m² + 4m² + 4m² + 4m² + 2m² = 20 m²
100 + 60 + 60 + 60 + 0** = 280 W
**(less than exact 4m² doesn't count)
def light(area):
power = 0
if area < 6:
power = 100
else:
........
#testing
print(luz(20))Any help to make this simple code would be AWESOME!
RE: How to build this code ?? - micseydel - Jun-27-2017
What have you tried?
RE: How to build this code ?? - Ofnuts - Jun-27-2017
(Jun-27-2017, 12:54 AM)micseydel Wrote: What have you tried?
Not LED lights, obviously :)
RE: How to build this code ?? - DeaD_EyE - Jun-28-2017
Try this one:
def light(area):
if area <= 6:
return 100
else:
new_area = area - 6
return 100 + (new_area // 4) * 60I'm not sure if the calculation is right. The double slash is integer division in Python 3.x.Take focus on the else-clause.
RE: How to build this code ?? - buran - Jun-28-2017
(Jun-26-2017, 11:38 PM)aquila Wrote: #testing
print(luz(20))
well, this will result in
Error:Traceback (most recent call last):
File "C:\luz.py", line 9, in <module>
print(luz(20))
NameError: name 'luz' is not defined
>>>def light(area):
if area > 0:
return 100 + max(0,(area-6)) // 4 * 60
else:
raise ValueError('Room area must be positive number. Received {}.'.format(area))
RE: How to build this code ?? - DeaD_EyE - Jun-28-2017
Read the stacktrace and compare the name of the function.
def light(area):
RE: How to build this code ?? - buran - Jun-28-2017
(Jun-28-2017, 01:24 PM)DeaD_EyE Wrote: Read the stacktrace and compare the name of the function.
def light(area):
Is this reply to my post?
RE: How to build this code ?? - DeaD_EyE - Jun-28-2017
Yes and as an addition for the original post. He should learn to read and understand a stacktrace.
RE: How to build this code ?? - buran - Jun-28-2017
(Jun-28-2017, 01:30 PM)DeaD_EyE Wrote: He should learn to read and understand a stacktrace.I misinterpreted your post :-)
RE: How to build this code ?? - aquila - Jun-28-2017
Thanks!
This here worked!
def light(area):
if area <= 6:
return 100
area = area - 6
power = 100
temp = int(area) // 4
power = power + temp * 60
return power
print(light(20)) #this must return 280
print(light(11.05))
print(light(11.43))
print(light(22))
print(light(5.8))
print(light(19))