import math
def params(x_range, y0, y1, y2): #y1 in the middle
t = (y2 - y0) / (y1 - y0) - 1
c = math.log(t) * 2 / x_range
b = (y1 - y0) / (t - 1)
a = 1 - b
return a, b, c
def formula(x,a,b,c):
return(a + b * math.exp(x * c))
a,b,c = params(100, 1, 200000, 1931946)
print(a, b, c)
for i in range(0, 101, 10):
print(i, formula(i, a, b, c))# your code goes here
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