Class: Kibuvits_krl171bt4_formula

Inherits:

Object

• Object
• Kibuvits_krl171bt4_formula

Defined in:

lib/kibuvits_ruby_library_krl171bt4_.rb

Overview

The class Kibuvits_krl171bt4_formula exists mainly for duck typing.

Everything is stored to the public field, which is a hash table, and the main idea is that a formula consists of components that are described by 2 variables in the hashtable:

x) An array of other formulaes, integers or symbols, like the Pi.

x) A string that is a name of the function that ties the

array elements together. For example, it might be multiplication,
werhe the order of elements in the array is relevant in cases
of matrixes, or the function might be summation, where usually
the order of arguments, in thins case, the array elements,
is not relevant.

One calls the formula component that are described by the array and the string a formulicle. (It’s a bit like the word: particle. The word “funclet” seems to be already used by other people for other denotates.)

The format of the hashtable is simplistic enough to be read form the source of the Kibuvits_krl171bt4_formula.create_formulicle

Constant Summary

@@lc_s_formulicle_name =

's_formulicle_name_'

@@lc_ar_formulicle_elements =

'ar_formulicle_elements_'

@@lc_s_numerator =

'numerator'

@@lc_s_denominator =

'denominator'

@@lc_s_fraction =

'fraction'

Instance Attribute Summary

• #ht ⇒ Object readonly

  The content of the @ht is editable despite the attr_reader.

• #s_formulicles_set_name ⇒ Object

  The s_formulicles_set_name is useful for determining, how to interpret the set of formulicles.

• #s_id ⇒ Object readonly

  GUID.

Class Method Summary

• .selftest ⇒ Object

Instance Method Summary

• #clear ⇒ Object

  Deletes all formulicles.

• #create_formulicle(s_name, ar) ⇒ Object

  There are no type restrictions set to the elements of the ar.

• #create_fraction(ar_or_x_numerator, ar_or_x_denominator) ⇒ Object

  ———-start-of-convenience-methods—————————-.

• #create_Riemann_integral(forumla_for_the_function, formula_for_the_dx_part, upper_limit = nil, lower_limit = nil) ⇒ Object

  create_fraction.

• #delete_formulicle(s_name) ⇒ Object

  create_formulicle.

• #initialize ⇒ Kibuvits_krl171bt4_formula constructor

  A new instance of Kibuvits_krl171bt4_formula.

Constructor Details

#initialize ⇒ Kibuvits_krl171bt4_formula

Returns a new instance of Kibuvits_krl171bt4_formula.

# File 'lib/kibuvits_ruby_library_krl171bt4_.rb', line 12935

def initialize
   @ht=Hash.new
   @s_id=Kibuvits_krl171bt4_GUID_generator.generate_GUID();
   @s_formulicles_set_name=nil
end

Instance Attribute Details

#ht ⇒ Object (readonly)

The content of the @ht is editable despite the attr_reader.

# File 'lib/kibuvits_ruby_library_krl171bt4_.rb', line 12928

def ht
  @ht
end

#s_formulicles_set_name ⇒ Object

The s_formulicles_set_name is useful for determining, how to interpret the set of formulicles.

# File 'lib/kibuvits_ruby_library_krl171bt4_.rb', line 12933

def s_formulicles_set_name
  @s_formulicles_set_name
end

#s_id ⇒ Object (readonly)

GUID

# File 'lib/kibuvits_ruby_library_krl171bt4_.rb', line 12929

def s_id
  @s_id
end

Class Method Details

.selftest ⇒ Object

# File 'lib/kibuvits_ruby_library_krl171bt4_.rb', line 13011

def Kibuvits_krl171bt4_formula.selftest
   ar_msgs=Array.new
   bn=binding()
   kibuvits_krl171bt4_testeval bn, "Kibuvits_krl171bt4_formula.test_1"
   return ar_msgs
end

Instance Method Details

#clear ⇒ Object

Deletes all formulicles.

This function exists just in case one changes the specification of the Kibuvits_krl171bt4_formula later.

# File 'lib/kibuvits_ruby_library_krl171bt4_.rb', line 12975

def clear
   @ht.clear
end

#create_formulicle(s_name, ar) ⇒ Object

There are no type restrictions set to the elements of the ar. For example, the elements might be matrices, Kibuvits_krl171bt4_formula instances, etc., but a recommendation is to use BigDecimal instances in stead of Float and Fixnum instances, because that avoids Fixnum related truncation and Float related rounding errors.

# File 'lib/kibuvits_ruby_library_krl171bt4_.rb', line 12951

def create_formulicle(s_name, ar)
   if KIBUVITS_krl171bt4_b_DEBUG
      bn=binding()
      kibuvits_krl171bt4_typecheck bn, String, s_name
      kibuvits_krl171bt4_typecheck bn, Array, ar
   end # if
   kibuvits_krl171bt4_throw 's_name.length==0' if s_name.length==0
   @ht[@@lc_s_formulicle_name+s_name]=s_name
   @ht[@@lc_ar_formulicle_elements+s_name]=ar
end

#create_fraction(ar_or_x_numerator, ar_or_x_denominator) ⇒ Object

———-start-of-convenience-methods—————————-

# File 'lib/kibuvits_ruby_library_krl171bt4_.rb', line 12981

def create_fraction(ar_or_x_numerator, ar_or_x_denominator)
   # If the single element at the numerator array is itself an
   # array, then one has to wrapt it to the fraction array outside
   # of this function, because the following 2 lines are not capable
   # of distinquishing the 2 cases.
   ar_numerator=Kibuvits_krl171bt4_ix.normalize2array(ar_or_x_numerator)
   ar_denominator=Kibuvits_krl171bt4_ix.normalize2array(ar_or_x_denominator)
   kibuvits_krl171bt4_throw "ar_numerator.size==0" if ar_numerator.size==0
   kibuvits_krl171bt4_throw "ar_denominator.size==0" if ar_denominator.size==0

   create_formulicle(@@lc_s_numerator,ar_numerator)
   create_formulicle(@@lc_s_denominator,ar_denominator)
   @s_formulicles_set_name=@@lc_s_fraction
end

#create_Riemann_integral(forumla_for_the_function, formula_for_the_dx_part, upper_limit = nil, lower_limit = nil) ⇒ Object

create_fraction

# File 'lib/kibuvits_ruby_library_krl171bt4_.rb', line 12996

def create_Riemann_integral(forumla_for_the_function,formula_for_the_dx_part,
   upper_limit=nil,lower_limit=nil)
   # TODO: complete it
end

#delete_formulicle(s_name) ⇒ Object

create_formulicle

# File 'lib/kibuvits_ruby_library_krl171bt4_.rb', line 12962

def delete_formulicle(s_name)
   if KIBUVITS_krl171bt4_b_DEBUG
      bn=binding()
      kibuvits_krl171bt4_typecheck bn, String, s_name
   end # if
   Hash.new.delete(@@lc_s_formulicle_name+s_name)
   Hash.new.delete(@@lc_ar_formulicle_elements+s_name)
end