Class: Keisan::Functions::Replace
- Inherits:
-
Keisan::Function
- Object
- Keisan::Function
- Keisan::Functions::Replace
- Defined in:
- lib/keisan/functions/replace.rb
Instance Attribute Summary
Attributes inherited from Keisan::Function
Instance Method Summary collapse
- #evaluate(ast_function, context = nil) ⇒ Object
-
#initialize ⇒ Replace
constructor
A new instance of Replace.
- #simplify(ast_function, context = nil) ⇒ Object
- #value(ast_function, context = nil) ⇒ Object
Methods inherited from Keisan::Function
#differentiate, #unbound_variables
Constructor Details
#initialize ⇒ Replace
Returns a new instance of Replace.
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# File 'lib/keisan/functions/replace.rb', line 4 def initialize @name = "replace" end |
Instance Method Details
#evaluate(ast_function, context = nil) ⇒ Object
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# File 'lib/keisan/functions/replace.rb', line 23 def evaluate(ast_function, context = nil) context ||= Context.new simplify(ast_function, context).evaluate(context) end |
#simplify(ast_function, context = nil) ⇒ Object
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# File 'lib/keisan/functions/replace.rb', line 13 def simplify(ast_function, context = nil) context ||= Context.new expression, variable, replacement = expression_variable_replacement(ast_function) expression = expression.simplify(context) replacement = replacement.simplify(context) expression.replace(variable, replacement).simplify(context) end |