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The map operator applies a uniform evaluation pattern to all members of a composite structure: a matrix, a list, or the arguments of an operator expression. The evaluation pattern can be a unary procedure, an operator, or an algebraic expression with one free variable.
It is used with the syntax:
map(fnc:function,obj:object)
Here obj is a list, a matrix or an operator expression. fnc can be one of the following:
The rule form for fnc is needed when more than one free variable occurs.
Examples:
map(abs,{1,-2,a,-a}) -> {1,2,ABS(A),ABS(A)} map(int(~w,x), mat((x^2,x^5),(x^4,x^5))) -> [ 3 6 ] [ x x ] [---- ----] [ 3 6 ] [ ] [ 5 6 ] [ x x ] [---- ----] [ 5 6 ] map(~w*6, x^2/3 = y^3/2 -1) -> 2*X^2=3*(Y^3-2)
You can use map in nested expressions. However, you cannot apply map to a non-composite object, e.g. an identifier or a number.
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