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D.15.3.20 difformNeq
Procedure from library difform.lib (see difform_lib).
- Usage:
- df != dg; df,dg difform
- Return:
- 0, if df and dg are euqal - 1, otherwise
Example:
| | LIB "difform.lib";
ring R = 0,(x,y,z),ds;
diffAlgebra();
==> // The differential algebra Omega_R was constructed and the differential \
forms dDx, dDy, dDz, dx, dy, dz are available.
/////////////////////////////////////////////////
// Applications of negated comparison operator //
/////////////////////////////////////////////////
difform df = 3*dx - x8*dx*dy;
difform dg = 3 + x8*dy;
df != dg;
==> 1
dg = dg*dx;
df != dg;
==> 0
kill Omega_R,df,dg,dx,dy,dz;
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See also:
difformEqu.
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