Face == Face -- Compare two faces.

• Operator: ==

• Usage:

  F==G

• Inputs:
  • F, an instance of the type Face,
  • G, an instance of the type Face,
• Outputs:
  • a Boolean value,

i1 : K=QQ;

i2 : R=K[x_0..x_4];

i3 : F=face {x_0,x_1}

o3 = x  x  
      0  1

o3 : face with 2 vertices in R

i4 : G1=face {x_1,x_0}

o4 = x  x  
      1  0

o4 : face with 2 vertices in R

i5 : G2=face {x_1,x_2}

o5 = x  x  
      1  2

o5 : face with 2 vertices in R

i6 : F==G1

o6 = true

i7 : F==G2

o7 = false