Tony Gaddis Python: Wind Chill Table

windChill.py

# 11/13/17

# Wind chill values. Rows should represent windspeed from 10 to
# 60 mph inclusive in 5 mph increments. Columns should
# represent temperatures from -20 to 60 inclusive in
# 10-degree increments.

# Print x values of table.
print()
print('Wind Chill Table')
print('\tTemperature')
print('   ', end = '')
for temp in range(-20, 61, 10):
    print(format(temp, '8d'), end = '')
print()

# Print y values of table.
print('Speed  ', end = '')
for temp in range(-20, 61, 10):
    print('_______', end = '')
print('_________')

# Print calculations inside table.
for speed in range(10, 61, 5):
    print(speed, '|', end = '    ')
    for temp in range(-20, 61, 10):
        wind_chill = 35.74 + 0.6215 * temp \
                     - speed ** 0.16 * (35.75 \
                     - 0.4275 * temp)
        print(format(wind_chill, '6.2f'), end = '  ')
    print()

what is this"for temp in range(-20, 61, 10):"

range (start, stop[, step])