Editing Hexadecimal (section)

===Irrational numbers===
The table below gives the expansions of some common [[irrational number]]s in decimal and hexadecimal.
{| class="wikitable"
! rowspan=2 | Number
! colspan=2 | Positional representation
|-
! Decimal
! Hexadecimal
|-
| [[Square root of 2|{{sqrt|2}}]] (the length of the [[diagonal]] of a unit [[Square (geometry)|square]])
| {{val|1.414213562373095048}}...
| 1.6A09E667F3BCD...
|-
| [[Square root of 3|{{sqrt|3}}]] (the length of the diagonal of a unit [[cube]])
| {{val|1.732050807568877293}}...
| 1.BB67AE8584CAA...
|-
| [[Square root of 5|{{sqrt|5}}]] (the length of the [[diagonal]] of a 1×2 [[rectangle]])
| {{val|2.236067977499789696}}...
| 2.3C6EF372FE95...
|-
| {{mvar|[[Golden ratio|φ]]}} (phi, the [[golden ratio]] = {{math|(1+{{radical|5}})/2}})
| {{val|1.618033988749894848}}...
| 1.9E3779B97F4A...
|-
| {{mvar|[[Pi|π]]}} (pi, the ratio of [[circumference]] to [[diameter]] of a circle)
| {{val|3.141592653589793238462643}}<br />{{val|383279502884197169399375105}}...
| 3.243F6A8885A308D313198A2E0<br />3707344A4093822299F31D008...
|-
| {{mvar|[[E (mathematical constant)|e]]}} (the base of the [[natural logarithm]])
| {{val|2.718281828459045235}}...
| 2.B7E151628AED2A6B...
|-
| {{mvar|[[Thue–Morse constant|τ]]}} (the [[Thue–Morse constant]])
| {{val|0.412454033640107597}}...
| 0.6996 9669 9669 6996...
|-
| {{mvar|[[Euler-Mascheroni constant|γ]]}} (the limiting difference between the [[harmonic series (mathematics)|harmonic series]] and the natural logarithm)
| {{val|0.577215664901532860}}...
| 0.93C467E37DB0C7A4D1B...
|}