#   Find 5 iterations of the bisection method with I0=[1,4] to 
#   approximate the solution to f(x)=0 where f(x)=log(x)-x+2.

println("This is Problem 1 for Exam 2.")

xn=[2.5, 3.25, 2.875, 3.0625, 3.15625]

#  Define any additional function you need here

a=1.0
b=4.0
correct=0
println()
for i=1:5
    global x,a,b,correct
    x=(a+b)/2
    println("I_$i = [$a,$b], x_$i = $x")

    #  Please add lines to this loop and fix it
    #  so it performs the needed bisection step

    if abs(x-xn[i])<1e-7
        correct+=1
    end
end
println()

if correct!=5
    println("Please try again.  Your answer is incorrect.")
else
    println("Congratulations!  Your answer is correct!")
end