# Array2 Example
# Read an array from a file, then compute the
# sum of the array. Use two methods read_array
# and sum_array to accomplish this.

# Define method to read array.
def read_array(the_file_name):
    values = [ ]
    f = open(the_file_name, "r")
    line = f.readline( )
    while line:
        values.append(float(line.strip( )))
        line = f.readline( )
                      
    return values

# Define method to compute sum of array.
def sum_array(the_array):
    sum = 0.0
    for x in the_array:
        sum += x
                      
    return sum

# Use methods defined below to read and 
# compute sum of array. These methods must
# be defined before using them
values = read_array("values1.txt")
print("Sum = {0:.2f}".format(sum_array(values)))