User Entered Constants

User Entered Constants are like the memory button on a normal handheld calculator, with a few more enhancements.

Within any expression you can specify a variable name followed by '=' and then whatever you want that variable to be set to. For the remainder of your session in GraphCalc you can recall that variable by just entering it into any expression. A list of all the constants you enter will be displayed in the constants menu under the "User Entered" constants section. You can also overwrite a variable to a new value. When you exit GraphCalc, all constants you enter in the program in this manner will be lost. To permanently store constants please see Adding Custom Constants.

Variables must follow a few guidelines:

they must start with a lowercase letter

after the first lowercase character, they may contain any alphanumeric character

the full variable name may be of any length

you may NOT set anything to the variables 'x', 'y', 'r', or 't' as they are used strictly as variables for graphing