Class: MathExpansion::Matriz_Densa

Inherits:
Matriz
  • Object
show all
Defined in:
lib/math_expansion/matriz_densa.rb

Instance Attribute Summary

Attributes inherited from Matriz

#M, #N, #contenido

Instance Method Summary collapse

Constructor Details

#initialize(n, m) ⇒ Matriz_Densa 



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# File 'lib/math_expansion/matriz_densa.rb', line 5

def initialize(n, m)
  super
  
  @contenido = Array.new(@N,0)
  i = 0
  while i < @N
    @contenido[i] = Array.new(@M,0)
    i += 1  
  end
end

Instance Method Details

#*(other) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/math_expansion/matriz_densa.rb', line 117

def *(other)
		raise ArgumentError , 'Parametro invalido' unless other.is_a? Numeric or other.is_a? Matriz

		if(other.is_a? Numeric) # Matriz * numero
  			c = Matriz_Densa.new(@N, @M)
	i = 0
  			while(i < @N)
    			j = 0
    			while(j < @M)
     				c.set(i, j, get(i,j)*other)
     				j += 1
 			end # while j
 			i += 1
  			end # while i
		else # Matriz * Matriz
  			raise ArgumentError , 'Matriz no compatible (A.N == B.M)' unless @M == other.N
  			c = Matriz_Densa.new(@N, other.M)
  			i = 0
  			while(i < @N)
    			j = 0
    			while(j < other.M)
   				k = 0
	#if (get(i,j).is_a? Fraccion)	      				
	#	c.set(i, j, Fraccion.null
	#else
	#	c.set(i, j, 0)
	#end
   				while(k < @M)
     				c.set(i, j, get(i, k) * other.get(k,j) + c.get(i,j))
     				k += 1
   				end # while k
      				j += 1
    			end # while j
 			i += 1
  			end # while i
		end # while else
if (c.null_percent > 0.6)
			c = MathExpansion::Matriz_Dispersa.copy(c)
		end
		c
end

#+(other) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/math_expansion/matriz_densa.rb', line 77

def +(other)
  		raise ArgumentError , 'Tipo invalido' unless other.is_a? Matriz
  		raise ArgumentError , 'Matriz no compatible' unless @N == other.N and @M == other.M
  
  		c = Matriz_Densa.new(@N, @M)
  		i = 0
		while(i < @N)
    		j = 0
    		while(j < @M)
   			c.set(i, j, get(i,j) + other.get(i,j))
	  			j += 1
			end 
			i += 1
  		end
		if (c.null_percent > 0.6)
			c = MathExpansion::Matriz_Dispersa.copy(c)
		end
  		c
end

#-(other) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/math_expansion/matriz_densa.rb', line 97

def -(other)
  		raise ArgumentError , 'Tipo invalido' unless other.is_a? Matriz
  		raise ArgumentError , 'Matriz no compatible' unless @N == other.N and @M == other.M
  
  		c = Matriz_Densa.new(@N, @M)
  		i = 0
  		while(i < @N)
    		j = 0
    		while(j < @M)
   			c.set(i, j, get(i,j) - other.get(i,j))
	  			j += 1
			end
			i += 1
  		end
		if (c.null_percent > 0.6)
			c = MathExpansion::Matriz_Dispersa.copy(c)
		end
  		c
end

#get(i, j) ⇒ Object 



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# File 'lib/math_expansion/matriz_densa.rb', line 16

def get(i, j)
  if( i < 0 or i >=@N or j < 0 or j >= @M)
    return nil
  end

  @contenido[i][j]
end

#max ⇒ Object

*(other)



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# File 'lib/math_expansion/matriz_densa.rb', line 159

def max
	m = get(0,0)
    i = 0
	while(i < @N)
		j = 0
		while(j < @M)
			if (get(i,j) > m)
m = get(i,j)
			end
			j += 1
		end
		i += 1
	end
	m
end

#min ⇒ Object 



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# File 'lib/math_expansion/matriz_densa.rb', line 175

def min
	m = get(0,0)
    i = 0
	while(i < @N)
		j = 0
		while(j < @M)
			if (get(i,j) < m)
m = get(i,j)
			end
			j += 1
		end
		i += 1
	end
	m
end

#null_percent ⇒ Object 



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# File 'lib/math_expansion/matriz_densa.rb', line 24

def null_percent
  total = @N*@M
  no_nulos = 0
  
  i = 0
  while(i < @N)
    j = 0
    while(j < @M)
      if(@contenido[i][j] != @contenido[i][j].class.null)
        no_nulos += 1
	  end
      j += 1
    end
    i += 1
  end
  
  nulos = total - no_nulos
  nulos.to_f/total.to_f
end

#set(i, j, value) ⇒ Object

endmethod null_percent



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# File 'lib/math_expansion/matriz_densa.rb', line 44

def set(i, j, value)
  if( i < 0 or i >=@N or j < 0 or j >= @M)
   return nil
  end
    
  if(!(value.class.respond_to? :null))
    puts "Se debe definir el metodo \"null\" que devuelva un elemento nulo para la clase #{value.class}"
    return nil
  end

  # Contar elementos nulos y comprobar si se hace una matriz dispersa
  # De momento, no dejamos añadir elementos nulos
  # ¿o si?
  #if(value != nil and value != value.class.null) # Y se puede comprobar para todos los tipos si es necesario. (con un método zero, por ejemplo)
    @contenido[i][j] = value
  #end
end

#to_s ⇒ Object 



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# File 'lib/math_expansion/matriz_densa.rb', line 62

def to_s
  s = ""
  i = 0
  while(i < @N)
    j = 0
    while(j < @M)
      s += "#{@contenido[i][j].to_s}\t"
      j += 1
    end
    s += "\n"
    i += 1
  end
  s
end