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Calculate concentration of pesticides according to active substance

Python, 60 lines
 ``` 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104``` ```# Created by Donyo Ganchev, Agricultural University, town of Plovdiv, Bulgaria #donyo@abv.bg choice=None def Concentration(): per_act_sub=input('Enter the percent of active substance in formulation : ') per_con_ws=input('Enter the percent concentration of the pesticide solution: ') am_ws=input('Enter the amount of pesticide solution: ') m_val=(float(am_ws)/(((per_act_sub-per_con_ws)/10)+(per_con_ws/10))) am_pest_ws=(per_con_ws/10)*m_val am_water=(((per_act_sub-per_con_ws)/10)+(per_con_ws/10))*(am_ws)/(((per_act_sub-per_con_ws)/10)+(per_con_ws/10))-am_pest_ws print \ """ """ print "Amount of pesticide formulation (ml or g): ", am_pest_ws print "Amount of water in pesticide solution (ml): ", am_water while choice!="0": print \ """ Pesticide Solution Concentration Program 1 - Begin calculation 0 - Exit """ choice= raw_input("Choice: ") if choice == "0": exit() elif choice=="1": Concentration() ```

1 comment

David Lambert 15 years, 2 months ago

In these codes you may as well write

while True: since you call exit if choice is '0'. Or the other way around.

 Created by donyo Ganchev on Mon, 26 Jan 2009 (MIT)

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