Ancient Egypt: Difference between revisions

Line 1,745: Line 1,745:


==== Numeric system ====
==== Numeric system ====
Hiero_D54.png
Egyptian sybmol for addition "go in"


* surviving evidence shows Egyptians used base-10 numeric system
* surviving evidence shows Egyptians used base-10 numeric system
Line 1,757: Line 1,755:
* the number 276 would be represented as:
* the number 276 would be represented as:
[[File:Egypt Hieroglyph numbers 276.gif|none|thumb]]
[[File:Egypt Hieroglyph numbers 276.gif|none|thumb]]
* Sources
** [[https://en.wikipedia.org/wiki/Ancient_Egyptian_mathematics\Ancient Egyptian mathematics (wikipedia)]]


==== addition and subtraction ====
==== addition and subtraction ====
* like many early peoples, Egyptians recorded addition and subtracting using indicators of adding to or taking away numbers
* like many early peoples, Egyptians recorded addition and subtracting using indicators of adding to or taking away numbers
*to add a number would be
*to add a number would be
**2 <-- 1 = 3
**2 <-- 1 = 3
***= adding 1 to 2
***= adding 1 to 2
** Egyptian symbol for addition = "go in"
[[File:Hiero_D54.png]] (= feet walking towards the first number being added to)<br>
so <big>1 [[File:Hiero_D54.png]] 2 = 3</big>
*to subtract a number would be
*to subtract a number would be
**3 --> 1 = 02
**3 --> 1 = 02
***= taking away 1 from 3
***= taking away 1 from 3
** Egyptian symbol for subtraction = "go out"<br>
so <big>3 [[File:Hiero_D55.png]] 1 = 2</big>
[[File:Hiero_D55.png]] (= feet walking away from first number being added to)
* Sources
** [[https://en.wikipedia.org/wiki/Ancient_Egyptian_mathematics|Ancient Egyptian mathematics (wikipedia)]]
** [[https://en.wikipedia.org/wiki/Ancient_Egyptian_units_of_measurement|Ancient Egyptian units of measurement (wikipedia)]]


===Gender equality===
===Gender equality===