Final answer:
For a multivariable function, the calculator used to find maximum and minimum values is a Multivariable Calculator.
Step-by-step explanation:
For a multivariable function, the calculator used to find maximum and minimum values is a Multivariable Calculator. Calculators specifically designed for multivariable functions, such as the TI-89 or the TI-Nspire CX CAS, can handle the calculations required to find the maximum and minimum values.