Mathematica "cannot be followed by"

SenatorArmstrong · July 29th, 2017, 10:38 AM

I am trying to create a program to solve Lagrange Multiplier problems.

LAGRANGE[f0_, g0_] := Module[{f = f0, g = g0}, 1 = Union[Variables[f], Variables[g]]]; Gradf =Table[D[f, 1[[i]]], (i, 1, Length[1])]; GradG =
Table[D[g, 1[[i]]], (i, 1, Length[1])];
Solve[{Gradf == \[Lambda] GradG, g == 0}, Append[1, \[Lambda]]]

I get a syntax error then: Syntax::sntxf: "(" cannot be followed by "i,1,Length[1])".

Would anyone happen to be familiar with this syntax error?

romsek · July 29th, 2017, 11:12 AM

use {} to enclose the table iterator

July 29th, 2017, 10:38 AM	#1
SenatorArmstrong Senior Member Joined: Nov 2015 From: United States of America Posts: 167 Thanks: 21 Math Focus: Calculus and Physics	Mathematica "cannot be followed by" I am trying to create a program to solve Lagrange Multiplier problems. LAGRANGE[f0_, g0_] := Module[{f = f0, g = g0}, 1 = Union[Variables[f], Variables[g]]]; Gradf =Table[D[f, 1[[i]]], (i, 1, Length[1])]; GradG = Table[D[g, 1[[i]]], (i, 1, Length[1])]; Solve[{Gradf == \[Lambda] GradG, g == 0}, Append[1, \[Lambda]]] I get a syntax error then: Syntax::sntxf: "(" cannot be followed by "i,1,Length[1])". Would anyone happen to be familiar with this syntax error?
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July 29th, 2017, 11:12 AM	#2
romsek Senior Member Joined: Sep 2015 From: USA Posts: 1,863 Thanks: 971	use {} to enclose the table iterator Thanks from greg1313
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