Learn to code for data analysis
Learn to code for data analysis

Start this free course now. Just create an account and sign in. Enrol and complete the course for a free statement of participation or digital badge if available.

Free course

Learn to code for data analysis

1.8 Values have units

Before I move on, let me explain the importance of using comments to record units of measurement.

Values are not just numbers, they have units: degrees Celsius, number of inhabitants, thousands of gallons, etc. Always make a note of the units the value refers to, using comments. This makes it easier to check whether the expressions are right. Disregarding the units will lead to wrong calculations and results.

Activity 2

Have you come across ‘horror stories’ that have happened due to mistakes in the unit of measurement?

Think through what happened and consider what you have learned from them.

To use this interactive functionality a free OU account is required. Sign in or register.
Interactive feature not available in single page view (see it in standard view).
LCDAB_1

Take your learning further

Making the decision to study can be a big step, which is why you'll want a trusted University. The Open University has 50 years’ experience delivering flexible learning and 170,000 students are studying with us right now. Take a look at all Open University courses.

If you are new to University-level study, we offer two introductory routes to our qualifications. You could either choose to start with an Access module, or a module which allows you to count your previous learning towards an Open University qualification. Read our guide on Where to take your learning next for more information.

Not ready for formal University study? Then browse over 1000 free courses on OpenLearn and sign up to our newsletter to hear about new free courses as they are released.

Every year, thousands of students decide to study with The Open University. With over 120 qualifications, we’ve got the right course for you.

Request an Open University prospectus371