Processing...
`answer = f("?","?","?","?","?")`
?
Instructions
Think of a number from 1 to 31. And then answer the questions:
- Is your number in GRID 'A'?
- Is your number in GRID 'B'?
- Is your number in GRID 'C'?
- Is your number in GRID 'D'?
- Is your number in GRID 'E'?
And vCalc will magically (i.e. mathematically) tell you the number.
Thanks to Chuck Trautwein for this fun little exercise in binary numbers.
The Math / Science
While it may seem like Mind Reading or Magic, it's just math, specifically binary math. If you have, five yes/no bits represented as zeroes and ones, you can use those bits to specify a base 10 number (what we use every day) from 1 to 31. Look at the list below. Do you see patterns? This is exactly how a computer represents numbers. The cards above each list the numbers that have the bits 1 through five listed.
- 0,0,0,0,1
- 0,0,0,1,0
- 0,0,0,1,1
- 0,0,1,0,0
- 0,0,1,0,1
- 0,0,1,1,0
- 0,0,1,1,1
- 0,1,0,0,0
- 0,1,0,0,1
- 0,1,0,1,0
- 0,1,0,1,1
- 0,1,1,0,0
- 0,1,1,0,1
- 0,1,1,1,0
- 0,1,1,1,1
- 1,0,0,0,0
- 1,0,0,0,1
- 1,0,0,1,0
- 1,0,0,1,1
- 1,0,1,0,0
- 1,0,1,0,1
- 1,0,1,1,0
- 1,0,1,1,1
- 1,1,0,0,0
- 1,1,0,0,1
- 1,1,0,1,0
- 1,1,0,1,1
- 1,1,1,0,0
- 1,1,1,0,1
- 1,1,1,1,0
- 1,1,1,1,1
Computer Science Calculators
- Convert Integer to Binary
- Convert Binary to Integer
- Convert Integer to Octal
- Convert Integer to Hex
- Convert Binary to Hex
- Convert Binary to Octal
- Convert Hex to Decimal
- Convert Hex to Octal
- Convert Octal to Decimal
- Convert Octal to Binary
- Convert Octal to Hex
- Pick a Number between 1 and 31 (binary game)
- Character to Unicode
- Binary Math
- Octal Math
- Hex Math
- Cyclomatic Complexity
String Manipulation Functions:
- String Compare
- Palindrome Check
- Reverse String
- Remove Vowels/Consonants/Numbers/Whitespace
- String to Comma-Separated List
- Word Count
- Character Count
- Regex Remove
- Caesar Cipher Encrypt
- Caesar Cipher Decrypt