SNF

SNF is on the syllabus of PCS1/SY1 but students could still be tested on it as part of a harder topic in PCS2/SY2 because PCS2/SY2 builds on the knowledge of PCS1/SY1-it is also on the syllabus for ASY.SNF stands for (Simplest Numeric Form) and is used so that people don't get mixed up between lateral and non-lateral solutions.

The general rules of SNF are that for simple numbers they are generally wrote as a(b) or occasionally,b^2 eg.25,with b being the larger number and for the smallest numbers, that are above 10 a=2,numbers between 0 and 9 are wrote as their number, unless they have 2 decimals places or more, if they do then they are wrote as a fraction, with numbers top and bottom wrote in SNF. The rules of SNF are that a number is divided by 2-9,to find the lowest common factor that is whole number above 2 and if there is no number that divides evenly, then decimals must be used, if no number divides leaving, only one decimal or less that is between 2-9,the number is wrote as a fraction, if the number is bigger than 90.0,it must either be wrote as a fraction or wrote using as little, numbers between 2-9 as possible multiplied together and occasionally they are wrote as a(b^2) eg.100 is 4(5^2).

If the number can't be divided by a whole number between 2 and 9 or a number with one decimal place, between 1 and 10 until it gets down to the digits column, then addition/subtraction must be used and if you take one off the current number then you must add 1 lot of what you have previously multiplied together and so on. As numbers get extremely big, they can be wrote in several ways as their simplest numeric form and these will be accepted in examinations, as long as they obey the rules of SNF,that all the numbers must be between 1-10 and have no more than one decimal place and must not be confusable for another number. A common mistake is to misassume what is meant by one decimal place, this means that the numbers can be represented to one decimal place eg.1 and 2/3 can be amalgamated as 1.6, with a recurring dot on the top and thus is an allowed number in SNF and although, recurring decimals are allowed rounding is forbidden because the exact number must be represented.

Applications
SNF is used so that Mathematicians don't get confused over the representation of their numeric values because they will have to deal with both lateral solutions and non-lateral solutions.It is also necessary in Computing so that when computers are sending information numbers can clearly be represented and not confused over them being wrote in algebraic form.The applications of SNF can also be used to understand whether a digit is missing or whether an amount is needed to be multiplied to get a certain amount-algebra.