cos property Null safety

CalculatorButton cos

Implementation

CalculatorButton get cos => CalculatorButtonHyperbolic(
    factory,
    'COS',
    '(i)',
    'COS^\u2009\u22121',
    Operations15.cos,
    Operations15.parenI15,
    Operations15.cosInverse,
    Operations15.cosh,
    Operations15.coshInverse,
    'O');