Acronym | pip |
TOCID symbol | (5)P |
Name |
pentagonal prism, 5-p, vertex figure of rox |
© © | |
Circumradius | sqrt[(15+2 sqrt(5))/20] = 0.986715 |
Vertex figure | [42,5] = of&#q |
Volume | sqrt[25+10 sqrt(5)]/4 = 1.720477 |
General of army | (is itself convex) |
Colonel of regiment | (is itself locally convex) |
Dihedral angles |
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Face vector | 10, 15, 7 |
Confer |
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External links |
As abstract polytope pip is isomorphic to stip, thereby replacing pentagons by pentagrams.
Incidence matrix according to Dynkin symbol
x x5o . . . | 10 | 1 2 | 2 1 ------+----+------+---- x . . | 2 | 5 * | 2 0 . x . | 2 | * 10 | 1 1 ------+----+------+---- x x . | 4 | 2 2 | 5 * . x5o | 5 | 0 5 | * 2 snubbed forms: x2β5o, x2β5o (as mere faceting), β2β5o, β2β5o (as mere faceting)
x2s10o demi( . . . ) | 10 | 1 2 | 1 2 ---------------+----+------+---- demi( x . . ) | 2 | 5 * | 0 2 sefa( . s10o ) | 2 | * 10 | 1 1 ---------------+----+------+---- . s10o | 5 | 0 5 | 2 * sefa( x2s10o ) | 4 | 2 2 | * 5 starting figure: x x10o
x2s5s demi( . . . ) | 10 | 1 2 | 1 2 --------------+----+------+---- demi( x . . ) | 2 | 5 * | 0 2 sefa( . s5s ) | 2 | * 10 | 1 1 --------------+----+------+---- . s5s | 5 | 0 5 | 2 * sefa( x2s5s ) | 4 | 2 2 | * 5 starting figure: x x5x
xx5oo&#x → height = 1
({5} || {5})
o.5o. | 5 * | 2 1 0 | 1 2 0
.o5.o | * 5 | 0 1 2 | 0 2 1
---------+-----+-------+------
x. .. | 2 0 | 5 * * | 1 1 0
oo5oo&#x | 1 1 | * 5 * | 0 2 0
.x .. | 0 2 | * * 5 | 0 1 1
---------+-----+-------+------
x.5o. | 5 0 | 5 0 0 | 1 * *
xx ..&#x | 2 2 | 1 2 1 | * 5 *
.x5.o | 0 5 | 0 0 5 | * * 1
xxx ofx&#xt → height(1,2) = sqrt[(5-sqrt(5))/8] = 0.587785 height(2,3) = sqrt[(5+sqrt(5))/8] = 0.951057 o.. o.. | 2 * * | 1 2 0 0 0 0 | 2 1 0 0 .o. .o. | * 4 * | 0 1 1 1 0 0 | 1 1 1 0 ..o ..o | * * 4 | 0 0 0 1 1 1 | 0 1 1 1 ------------+-------+-------------+-------- x.. ... | 2 0 0 | 1 * * * * * | 2 0 0 0 oo. oo.&#x | 1 1 0 | * 4 * * * * | 1 1 0 0 .x. ... | 0 2 0 | * * 2 * * * | 1 0 1 0 .oo .oo&#x | 0 1 1 | * * * 4 * * | 0 1 1 0 ..x ... | 0 0 2 | * * * * 2 * | 0 0 1 1 ... ..x | 0 0 2 | * * * * * 2 | 0 1 0 1 ------------+-------+-------------+-------- xx. ...&#x | 2 2 0 | 1 2 1 0 0 0 | 2 * * * ... ofx&#xt | 1 2 2 | 0 2 0 2 0 1 | * 2 * * .xx ...&#x | 0 2 2 | 0 0 1 2 1 0 | * * 2 * ..x ..x | 0 0 4 | 0 0 0 0 2 2 | * * * 1
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