Class: Keisan::Calculator
- Inherits:
-
Object
- Object
- Keisan::Calculator
- Defined in:
- lib/keisan/calculator.rb
Instance Attribute Summary collapse
-
#context ⇒ Object
readonly
Returns the value of attribute context.
Instance Method Summary collapse
- #allow_recursive ⇒ Object
- #allow_recursive! ⇒ Object
- #ast(expression) ⇒ Object
- #define_function!(name, function) ⇒ Object
- #define_variable!(name, value) ⇒ Object
- #evaluate(expression, definitions = {}) ⇒ Object
-
#initialize(context: nil, allow_recursive: false) ⇒ Calculator
constructor
A new instance of Calculator.
- #simplify(expression, definitions = {}) ⇒ Object
Constructor Details
#initialize(context: nil, allow_recursive: false) ⇒ Calculator
Returns a new instance of Calculator.
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# File 'lib/keisan/calculator.rb', line 5 def initialize(context: nil, allow_recursive: false) @context = context || Context.new(allow_recursive: allow_recursive) end |
Instance Attribute Details
#context ⇒ Object (readonly)
Returns the value of attribute context.
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# File 'lib/keisan/calculator.rb', line 3 def context @context end |
Instance Method Details
#allow_recursive ⇒ Object
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# File 'lib/keisan/calculator.rb', line 9 def allow_recursive context.allow_recursive end |
#allow_recursive! ⇒ Object
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# File 'lib/keisan/calculator.rb', line 13 def allow_recursive! context.allow_recursive! end |
#ast(expression) ⇒ Object
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# File 'lib/keisan/calculator.rb', line 25 def ast(expression) Evaluator.new(self).ast(expression) end |
#define_function!(name, function) ⇒ Object
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# File 'lib/keisan/calculator.rb', line 33 def define_function!(name, function) context.register_function!(name, function) end |
#define_variable!(name, value) ⇒ Object
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# File 'lib/keisan/calculator.rb', line 29 def define_variable!(name, value) context.register_variable!(name, value) end |