如何从for循环中找到最小值？

import sys
trig = []
base, area = input().strip().split(' ')
base, area = [int(base), int(area)]
for i in range(1,area+1):
    form = abs(((base*i)/2)-area)
    trig.append(form)

for i in range(1,area+1):
    form = abs(((base*i)/2)-area)
    if form == min(trig):
        print(i)
import sys
trig = []
base, area = input().strip