I so often get asked, what maths do I need as a Technologist, there is no simple answer, because it depends on the type and style of work your doing, but here is my take on the min.

Basic arithmetic, the every day use of numbers, addition, subtraction, multiplication, division, with and without a calculator, and if you use one, make sure you know how to use it.

Next trig, or Trigonometry, this is so often over looked now, simply because CAD packages are so good at working out lengths and angles for you, but in my book, you should be able to apply SOH-CAH-TOA without the aid of a CAD program. Unfortunately this means simple Algebra as well.

Logs are an option, but I can’t remember using them in recent years, but I’m told it should not be neglected.

Last but not least, is the ability to use a good spreadsheet, I know its not straight maths, but this is the medium we all use to collect and manipulate numbers, and you should be able to list numbers and use the built in formulas, its almost every day use now so it is part of my Maths update list.

So the CPD here is, take a little time to practice Trig and a little Algebra, I had not forgotten it, but it took some time to get back into it, and as always, some times computers are just not there, and we might have to do it the long way.

Todays photo is of a comparison of lat, long lines super imposed onto a Eastings and northing lines and clearly shows why we do not use lat and long co-ordinates in the building industry.

I can’t remember where I found this photo, but apologies to you if it’s yours, but its such a good example I thought all should see it.