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# Hexa and octal values conversion to decimal integers, How?

Nikhitha Pai
Greenhorn
Posts: 19
Hi,
Often we find questions where they give octal or hexadecimal values and ask what is the resut of shift operations .
In such cases to evaluate the expression, how do you convert the hexadecimal and octal values to decimal equivalents manually, do the shift operations and get the answer . Could you please give an example.

Henry Wong
author
Sheriff
Posts: 23289
125
Nikhitha Pai wrote:Hi,
Often we find questions where they give octal or hexadecimal values and ask what is the resut of shift operations .
In such cases to evaluate the expression, how do you convert the hexadecimal and octal values to decimal equivalents manually, do the shift operations and get the answer . Could you please give an example.

Not sure what you are asking here... except, IMO, it is easier to envision the shifting of octal and hexadecimal numbers, as the bit boundaries are easier to see. So, unless the question wants the result in decimal, why would you want to convert the number to decimal first? Also, on how to convert octal and hexadecimal numbers to decimal, that is standard base arithmetic that is taught in the eight grade (well, at least in the US, it is taught in the eight grade).

Henry