By Monagan, Geddes, Heal, Labahn, et al.

ISBN-10: 1894511441

ISBN-13: 9781894511445

Similar software: systems: scientific computing books

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The worksheets during this PTC assortment can be utilized as templates for fixing regular difficulties encountered within the structural layout of structures, warmth move and thermal dynamics in constructions, electromagnetics, together with transmission lines/Smith charts, energy distribution difficulties, structural research and basic boundary worth difficulties.

Extra info for Maple 9 advanced programming guide

Example text

That is, p should contain exactly one copy of each integer from 1 through n. nops(p)) }; > end proc: > type( [1,5,2,3], permutation ); false > type( [1,4,2,3], permutation ); true The type-testing procedure can accept more than one parameter. When you test if an expression, expr, has type name (parameters ), then Maple invokes ‘type/name ‘( expr, parameters ) if such a procedure exists. The following ‘type/LINEAR‘ procedure determines if f is a polynomial in V of degree 1. 5 Extending Maple • 33 > ‘type/LINEAR‘ := proc(f, V::name) > type( f, polynom(anything, V) ) and degree(f, V) = 1; > end proc: > type( a*x+b, LINEAR(x) ); true > type( x^2, LINEAR(x) ); false > type( a, LINEAR(x) ); false Exercises 1.

Accessing Module Exports The use statement allows you to access module exports. > use TempGenerator in > gentemp(); > gentemp(); > gentemp(); > end use; T2 T3 T4 Within the body of a use statement, the exported local variables of the module that appears after the use keyword can be accessed directly, without using the member selection operator :-. In This Chapter This chapter provides many example modules. Some examples are very simple, designed to illustrate a specific point. Others are more substantial.

Module exports are declared using the export declaration. It begins with the keyword export, after which follows a (nonempty) sequence of symbols. A name is never exported implicitly; exports must be declared. The result of evaluating a module definition is a module. You can view a module as a collection of its exports, which are also referred to as members of the module. These are simply names that can (but need not) be assigned values. You can establish initial values for the exports by assigning to them in the body of the module definition.