Index: /issm/trunk-jpl/src/m/classes/friction.m
===================================================================
--- /issm/trunk-jpl/src/m/classes/friction.m	(revision 17927)
+++ /issm/trunk-jpl/src/m/classes/friction.m	(revision 17928)
@@ -40,5 +40,5 @@
 		end % }}}
 		function disp(obj) % {{{
-			disp(sprintf('Sigma= drag^2 * Neff ^r * u ^s, with Neff=rho_ice*g*thickness+rho_water*g*bed, r=q/p and s=1/p'));
+			disp(sprintf('Basal shear stress parameters: Sigma_b = coefficient^2 * Neff ^r * |u_b|^(s-1) * u_b\n(effective stress Neff=rho_ice*g*thickness+rho_water*g*bed, r=q/p and s=1/p)'));
 			fielddisplay(obj,'coefficient','friction coefficient [SI]');
 			fielddisplay(obj,'p','p exponent');
Index: /issm/trunk-jpl/src/m/classes/friction.py
===================================================================
--- /issm/trunk-jpl/src/m/classes/friction.py	(revision 17927)
+++ /issm/trunk-jpl/src/m/classes/friction.py	(revision 17928)
@@ -22,5 +22,5 @@
 		#}}}
 	def __repr__(self): # {{{
-		string="Sigma= drag^2 * Neff ^r * u ^s, with Neff=rho_ice*g*thickness+rho_water*g*bed, r=q/p and s=1/p"
+		string="Basal shear stress parameters: Sigma_b = coefficient^2 * Neff ^r * |u_b|^(s-1) * u_b,\n(effective stress Neff=rho_ice*g*thickness+rho_water*g*bed, r=q/p and s=1/p)"
 
 		string="%s\n%s"%(string,fielddisplay(self,"coefficient","friction coefficient [SI]"))