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I put this in for the function
result = 0
if start+step <= stop:
result += f(start)*step+radiationExposure(start+step, stop, step)
return result
Is there something wrong with this? Here are the cases where it said I failed.
Function call: radiationExposure(0, 3, 0.1)
Uranium-240.Half-life: 14.1 hours. Initial Activity: 200 MBq.
Find total exposure from hours 0 - 3.
def f(x):
import math
return 200*math.e**(math.log(0.5)/14.1 * x)
Your output:
541.8832982028397
Correct output:
559.2259707824549
Function call: radiationExposure(14, 20, 0.1)
Uranium-240.Half-life: 14.1 hours. Initial Activity: 200 MBq.
Find total exposure from hours 14 - 20.
def f(x):
import math
return 200*math.e**(math.log(0.5)/14.1 * x)
Your output:
515.9335449337217
Correct output:
523.4527522388149
Function call: radiationExposure(48, 72, 0.4)
Uranium-240.Half-life: 14.1 hours. Initial Activity: 200 MBq.
Find total exposure from hours 48 - 72.
def f(x):
import math
return 200*math.e**(math.log(0.5)/14.1 * x)
Your output:
266.43107144027584
Correct output:
268.79947333082856
Function call: radiationExposure(72, 96, 0.4)
Uranium-240.Half-life: 14.1 hours. Initial Activity: 200 MBq.
Find total exposure from hours 72 - 96.
def f(x):
import math
return 200*math.e**(math.log(0.5)/14.1 * x)
Your output:
81.88293278289527
Correct output:
82.61081970598813
However, when I add if start+step <= stop+step: instead of if start+step <= stop:, the cases work. WHAT DO I DO?
Thank you for any advice, dhwang314.
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