#This is my PYTHON program
import math;
x=y=float();
A=B=dx=float();
print("Please enter value for start A\n");
A=float(input());
print("A=",A);
print ("Please enter value for finish B\n");
B=float(input());
print("B=",B);
print("Please enter value for step dx\n");
dx=float(input());
print("dx=",dx);
x=A;
while (x<=B):
y=2**((1-math.fabs(x))/(1+math.fabs(x)));
print(f"x={x:10.3f} y={y:10.3f}");
x=x+dx;
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