Operating on body temperatures
You have been asked to analyze an array of body temperature data for a sample of people. Abnormally high or low body temperatures might indicate that person is unwell.
The array of measurements is available in your environment as body_temps_f
, but these are the body temperatures measured in degrees Fahrenheit. You would prefer to work with these values in Celsius.
Thankfully, you know that you can convert these temperatures in Julia using array operations.
You can convert a measurement \(T_f\) measured in Fahrenheit into the equivalent temperature in Celsius using:

This exercise is part of the course
Introduction to Julia
Exercise instructions
- Subtract 32 from each element of the
body_temps_f
array and assign it to a new variable namedbody_temps_sub
. - Multiply each element of
body_temps_sub
by a factor of 5/9 and assign it to the variablebody_temps_c
. - Sort
body_temps_c
from lowest to highest and assign the result tosorted_body_temps_c
. - Print the five lowest values from
sorted_body_temps_c
.
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
# Subtract 32 from each element of body_temps_f
body_temps_sub = ____
# Multiply each element in body_temps_sub by 5/9
body_temps_c = ____
# Sort the temperatures from lowest to highest
sorted_body_temps_c = ____(____)
# Print the 5 lowest temperatures
println(____)