patterns in life
aspects of science
Keeping Letters in Proportion

I've tried here to come up with a clever title. The "letters" refer to the application of algebra and "proportion" indicates a simple mathematical relationship that can be defined by a formula.

There are different topics covering the manipulation of equations (or formulae) but this page relates to using a selection of formulae and how to apply them.

There are mathematical formulae:

There are financial formulae:

Example: Working out the monthly payment for a mortgage

There are scientific formulae:

Example: Working out the voltage across a resistor

When we apply formulae we need to work with the correct units of measurement so dimensional analysis skills are vital.

All training apps are subject to Apple's standard licensing agreement. Copyright is protected for Alexander Watt 2011/ 2012/ 2013/ 2014/ 2015/ 2016. Feedback is welcomed in terms of adding functionality to downloaded apps. Apple, iPod, iPhone, iTunes, iPod touch are registered trademarks of Apple Computer, Inc. If you find links you find inappropriate please email me at and I will check it. I have provided these links with the best intentions however I cannot be held responsible for their content.
  Site Map