Summary: equating a variable with its value

*To*: mathgroup at christensen.cybernetics.net*Subject*: [mg1264] Summary: equating a variable with its value*From*: jans at matematik.su.se (Jan Snellman)*Date*: Mon, 29 May 1995 03:48:53 -0400*Organization*: Department of Mathematics, Stockholm University

Hello again, folks! A few days ago, I presented my problems with the pure function multiplication by m : >Study this codelet: > >m=3; mult=Times[#,m]&; Clear[m]; mult[10] > >To my dismay, I get 10 m, not 30. >How can i convince Mathematica that only pedants make the distinction >between a variable and its value? The response has been overwhelming! Thank you all! I feel it is my duty to summarize the many and instructing answers I received. 1. mult = Function[x,x #]& [m] 2. mult = With[{m = m}, Times[#, m]& ] 3. mult=Module[{n=m},Function[{x},x*n]] 4. mult=Evaluate[Times[#,m]]& 5. ClearAttributes[Function,{Protected,HoldAll}]; mult=Times[#,m]& 6. SetMult[v_] := mult=Times[v,#]&; SetMult[m] 7. mult = Times[#, m]& /. Literal[m] -> m -- Jan Snellman : "Whenever you find that you are on the side of the jans at matematik.su.se : majority, it is time to reform." M T