VisiCalcJEC

Calculator that supports arithmetic and relational operations.

This app uses a lexical and syntax analyzer created using JFlex library.

Available commands:

help: Shows help.

vers: Shows app's version.

limp: Clear the screen.

term: Stop the app.

defi: Defines a variable.

list: Shows variables.

calc: Solves an arithmetic expression.

Operations supported:

• • (Sum) Examples: 10+20 5.4+75
• • (Subtraction) Examples: 10-20 75.4-4.1
• • (Multiplication) Examples: 420 7.47.5
• / (Division) Examples: 10/20 75.5/2
• ^ (Pow) Examples: 5^8 4.5^5

• (Squared Root) Examples: #20 #7

• () (Parenthesis) Examples: 7*(5+5) 10/(5-1)

borr: Delete a variable.

grab: Stores last value in a variable.

vali: solves an logical expression.

Operations supported:

• < (Less than) Examples: 5<50? 4.5*4<16?

• (Greater than) Examples: 5>50? 4.5*4>16?

• <= (Less or equal than) Examples: 5<=50? 4.5<=4.6?

• = (Greater o equal than) Examples: 5>=50? 4.5*4>=16?

• <> (Different than) Examples: 5<>5? 5.5<>5.6?
• == (Equal than) Examples: 5==5? 4.5*4==16?