Convert hexadecimal numbers to binary and vice versa -convert hexadecimal numbers to decimal numbers -convert decimal numbers to hexadecimal

This gentleman explains it very well. The trick seems to be to enter the number and then hit the equals sign, and then do the conversion.

Good luck,

Paul


Decimal to Binary and Hexadecimal conversions using casio fx 991MS HYONKOWS

To convert from binary to decimal, we have to line up the numbers with the binary columns.

1 1 1 0 0 0
2^5 2^4 2^3 2^2 2^1 2^0
32 16 8 4 2 1

32 + 16 + 8 + 0 + 0+ 0 = 56

Good luck.

Paul

Dinary? Never heard that one before. What is a dinary number? Anyway your calculator cannot perform the operations. The Casios can work in Binary (base 2), Octal (base 8), Decimal (base 10) and Hexadecimal (base 16). Some Sharps can do calculations in base 5 (pental).

If you want to convert from another base to decimal, press MODE 4 to enter the BASE-N mode, select the initial base (binary, octal, or hexadecimal), enter the number, then switch to decimal to see the value in decimal.
If you want to exit the BASE-N mode, press MODE 1 to switch to the computational model or MODE 2 for complex mode.

Letters can be converted into decimal number using ASCII table. Every Character has it own equivalent number. Once converted into decimal (base 10), I could be easily converted into binary (base 2)
You could also use applications or web based applications such as ASCII to binary converter to help you convert it.

If you're already in decimal mode, press SHIFT BIN to switch to binary mode.

To convert a number from decimal to binary, press MODE 4 to switch to BASE-N mode. You'll find yourself in decimal mode. Enter the number to convert, press =, then press SHIFT [BIN] (the log key) and see the number in binary. To convert another number, press SHIFT [DEC] to return to decimal, enter the number, press =, then press SHIFT [BIN]. An analogous process works for hexadecimal and octal as well.

To return to "normal" use, press MODE 1 for COMP mode or MODE 2 for complex mode.

Press MODE 4 to enter the BASE-N mode. Type in the decimal number, then press BIN to convert to binary. Press DEC to switch back to decimal for the next conversion.

You're limited to numbers in the range [-32768...32767] in binary. You can extend the range if you convert to octal or hexadecimal and then mentally convert each digit to three or four bits.

Hello desireejane,


One method is to do the following

1. Convert the octal, hexadecimal or binary to decimal.
2. Add or Subtract the decimal normally
3. Convert the result back to octal, hexadecimal or binary.

• Convert the octal to decimal:

public static long octalToDecimal(String octal) throws NumberFormatException {
// Initialize result to 0
long res = 0;

// Do not continue on an empty string
if (octal.isEmpty()) {
throw new NumberFormatException("Empty string is not an octal number");
}

// Consider each digit in the string
for (int i = 0; i < octal.length(); i++) {
// Get the nth char from the right (first = 0)
char n = octal.charAt(octal.length() - (i+1));

int f = (int) n - 48;
// Check if it's a valid bit
if (f < 0 || f > 7) {
// And if not, die horribly
throw new NumberFormatException("Not an octal number");
} else {
// Only add the value if it's a 1
res += f*Math.round(Math.pow(2.0, (3*i)));
}
}

return res;
}

To convert numbers you can use the printf() function
printf("%d", x'FF') hex to decimal
printf("%o", x'FF') hex to octal

If you want to save the value in another variables use sprintf
e.g

a = x'FF';
b = sprintf("%d",a)

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