1. An electronic calculator comprising: keyboard input means including a plurality of operand and operator keys for entering an algebraic statement into the calculator, one of said operator keys representing a relational operator for specifying a relational operation between specified quantities; memory means for storing alphameric information, including an algebraic statement entered into the calculator; processing means, coupled to said keyboard input means and memory means, for processing an algebraic statement entered into the calculator and stored in said memory means to perform the operations specified in that algebraic statement; and output means, coupled to said processing means, for providing a visual indication of selected results of algebraic statements processed by said processing means; said processing means being operative, during processing of an algebraic statement that specifies a relational operation between specified quantities, for performing a comparison of the specified quantities in accordance with the specified relational operation, for causing a first numeric value to be stored at a predetermined location in said memory means if the specified quantities satisfy the specified relational operation, and for causing a second numeric value to be stored at the predetermined location in said memory means if the specified quantities do not satisfy the specified relational operation.
4. An electronic calculator as in claim 1 wherein the specified quantities comprise a selected combination of numeric constants, variables, and algebraic expressions.