Ch 5 boolean logic
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Boolean logic is a form of mathematics that represents true and false values using binary numbers. It was developed by George Boole in 1854 and forms the basis of modern computing. There are three basic Boolean logic operations - AND, OR, and NOT - that allow combining true and false values to form compound conditions. Boolean logic uses logical comparisons like greater than, less than, equal to, etc. to represent conditions that evaluate to true or false.
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Digital logic is based on the binary number system of 0s and 1s. This two-valued logic system allows statements to be either true or false. One reason for using binary is that electronic circuits can be designed to reliably represent and switch between two states. There are two classes of digital logic - combinational logic, where outputs depend only on current inputs, and sequential logic, where outputs also depend on prior states. Basic logic gates like AND, OR, and NOT are used to combine input signals in circuits. The Karnaugh map provides a visual method to simplify Boolean logic expressions by grouping adjacent ones to minimize variables.
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Ch 5 boolean logic
- 10. Boolean Logic in Alice
- 11. Boolean Functions Functions in Alice that return true or false values are called Boolean functions. Alice has many such built-in functions, such as these two groups of basic Boolean logic functions and comparison functions.
- 12. They can be found on the world’s functions tab
- 13. They are used inside branching and looping instruction tiles
- 14. Boolean Functions The Boolean comparison functions can be used to create simple true or false conditions.
- 15. Boolean Functions The Boolean logic functions can be used to create compound conditions.
- 16. Boolean Functions Alice has many other world-level and object-level fuctions that return true or false values, such as the Boolean proximity functions shown here on aliceLiddel’s functions tab in the details area.
- 17. Boolean Functions They can be used anywhere that a Boolean value is needed, such as in this If/Else command.
Editor's Notes
- The Redo button will reverse the last use of the Undo button, restoring the previous action. The Ctrl-Y keyboard shortcut also can be used in place of the Redo button.
- The Redo button will reverse the last use of the Undo button, restoring the previous action. The Ctrl-Y keyboard shortcut also can be used in place of the Redo button.
- The Redo button will reverse the last use of the Undo button, restoring the previous action. The Ctrl-Y keyboard shortcut also can be used in place of the Redo button.
- The Redo button will reverse the last use of the Undo button, restoring the previous action. The Ctrl-Y keyboard shortcut also can be used in place of the Redo button.
- The Redo button will reverse the last use of the Undo button, restoring the previous action. The Ctrl-Y keyboard shortcut also can be used in place of the Redo button.
- The Redo button will reverse the last use of the Undo button, restoring the previous action. The Ctrl-Y keyboard shortcut also can be used in place of the Redo button.
- The Redo button will reverse the last use of the Undo button, restoring the previous action. The Ctrl-Y keyboard shortcut also can be used in place of the Redo button.