Blog 2

Set 2 of my blogs                                 Consistently Under Construction.
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Article 2.1      April 5, 2021

Percent (%) Made Easier.

A few snippets from my published article on the above topic.

Percent (%) or Percentage (%) calculations are sometimes avoided by those who are more adept at or more predisposed towards other non-numbers subjects.

But the reality is that percents can be calculated by various methods without understanding the math behind the eventual answer.

Non-number cruncher folk should choose a method that they are comfortable with and use it with confidence.

Every mobile phone or cellphone contains a calculator, and conversion applications (apps) abound, so there is really no need to revert to pen-'n'-paper methods for calculating almost anything. However, for a single calculation or conversion the pen-'n'-paper or the in-the-mind calculation or conversion is favored because it is more swift.

Percent, or more correctly, per cent, is a term that means per century or per 100.

It divides an amount of something in question into an imaginary 100 parts.

Then we can state part-reductions, for example in sales, or part-increases, for example in pay rises, with some ease, without referring to the exact or absolute amount.

Percent works on any amount of anything whether currency, weights, liquids, areas, sizes, thicknesses, or anything that can be considered a quantity or a quality.

Demonstrating with examples is a good way of explaining the methods.

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Article 2.2      April 6, 2021

Converting Number Systems.

A few snippets from my published article on the above topic.

The default decimal, Base10, system ideally should be annotated 0, 110, 210, 310, 410, 510, 610, 710, 810, 910, but the subscripts are omitted in everyday use.

The Decimal Base10 system columns

Column Name 10Mils Mils 100Ths 10Ths Ths 100s 10s Units

Base10 Column Value 107 106 105 104 103 102 101 100

Decimal Column Value 10Mil10 1Mil.10 100Th.10 10Th.10 100010 10010 1010 110

The Binary, Base2, system has two discrete numeric values of 0 and 12, equivalent to 0 and 110.

Column values are shown for an 8-bit computer binary word, for a 16-bit word the MSB column would be 215 (32,76810).

Column Name (MSB)128s 64s 32s 16s 8s 4s 2s 1s (LSB)

Base2 Column Value 27 26 25 24 23 22 21 20

Decimal Column Value 12810 6410 3210 1610 810 410 210 110

The Octal, Base8, system has eight discrete numeric values of 0, 18, 28, 38, 48, 58, 68, and 78, equivalent to 0, 110, 210, 310, 410, 510, 610, and 710.

Column Name 32768s 4096s 512s 64s 8s 1s (Units)

Base8 Column Value 85 84 83 82 81 80

Decimal Column Value 3276810 409610 51210 6410 810 110

The Hexadecimal, Base16, system has sixteen discrete alpha-numeric values of 0, 116, 216, 316, 416, 516, 616, 716, 816, 916, A16, B16, C16, D16, E16, and F16, equivalent to 0, 110, 210, 310, 410, 510, 610, 710, 810, 910, 1010, 1110, 1210, 1310, 1410, and 1510.

Column Name 65536s 4096s 256s 16s 1s (Units)

Base16 Column Value 164 163 162 161 160

Decimal Column Value 6553610 409610 25610 1610 110

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