// HEX 2 DECIMAL
// get the hex value in string
char szHexVal[50];
scanf("%s", szHexVal);
int n;
sscanf(szHexVal, "%d", &n);
Similar thing can do for the rest
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Question
Convert Decimal value to hexadecimal and viseversa and octal
How can you make a program that would convert a decimal value to hexadecimal value and viseversa. And decimal value to octal value and viseversa?
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Answers
from 8 base to 2:
from right to left:
every octal digit is 3 binary digits
0-000
1-001
.
.
7-111
from 16 to 2
the same but every hex digit is 4 digits
0-0000
.
.
e-1110
f-1111
from 2 to 8 or 16
the reverse process
from 10 to 2
while (num>0)
divide to two. write the remenider in side.
example:
num reminder
17 1
8 0
4 0
2 0
1 1
0
the number is 10001 (from bottom up!)
(will work with other bases just divide to 3,4..)
from 2 to 10.
most right digit*1
+
next right digit*2
+
next right digit*4
.
.
equal the dec base.
Yair
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by: andrewjbPosted on 2002-10-04 at 11:35:26ID: 7314308
scanf and printf? Is this homework?