Real Answer™ writes its answers in the Answers and Scratch window. The user may also enter expressions there; then pushing the “enter” key will cause the expression to be calculated. Real Answer will then write the answer below it. The handy Flex-Calc™ feature activates when you modify a previous line and then push “enter”. Real Answer will then copy the modified line to the bottom of the window and write the new answer below it. Real Answer will set the original line the user modified back to its unmodified state so that an accurate record is maintained of previously evaluated expressions and their answers.
You can make assignments in the Answers & Scratch window using either type of equals sign:
“v=5+4” and “v:=5+4” both do the same thing: they put the value 9 into the variable v and cause a message to be written saying that "v is now 9".
You can resubmit a previously solved expression or assignment for processing by selecting all or part of it and then pushing the “enter” key.
If you enter an expression into the Answers & Scratch window and then choose Run solver (“⌘R”), Real Answer will just calculate the value of the expression you entered instead of solving the equations in the Simultaneous Equation Set window. Typing “⌘R” a second time will solve the simultaneous equations. This courtesy feature is designed to ease the use of Real Answer by a novice who hasn’t quite yet gotten used to the fact that “⌘R” is supposed to be used for the Simultaneous Equation Set window.
