value

type BigInt struct {
	*big.Int
}

type BigRat struct {
	*big.Rat
}

type Context interface {
	// Lookup returns the value of a symbol.
	Lookup(name string) Value

	// AssignLocal binds a value to the name in the current function.
	AssignLocal(name string, value Value)

	// Assign assigns the variable the value. The variable must
	// be defined either in the current function or globally.
	// Inside a function, new variables become locals.
	Assign(name string, value Value)

	// Push pushes a new frame onto the context stack.
	Push()

	// Pop pops the top frame from the stack.
	Pop()

	// Eval evaluates a list of expressions.
	Eval(exprs []Expr) []Value
}

type Error string

type Expr interface {
	String() string

	Eval(Context) Value
}

type Int int64

type Matrix struct {
	// contains filtered or unexported fields
}

type Value interface {
	String() string
	Eval(Context) Value
	// contains filtered or unexported methods
}

type Vector []Value