is binary system internal with multiplikation transformed into decimal

Question

Hello,

me is at sec working on mathematical system and has have a huge difficult questions. me find at sec out how to transform a binary pattern into a quaternary pattern with just setting into some kind of number,, also with string concatenation. In how far this is intelligent with binary operations, if the system internal from windows does this with the common suggested method of to multiply a given position with 2 simply,, also uses still the cpu this way or not???

thx for ya efforts

Answer 1

your question is not clear. with computers generally all arithmetic is binary (base 2). the conversion to decimal is done when converted to a string. There are some speciality libraries that do decimal arithmetic (but they are slower). .net has a decimal type. while the arithmetic is done in binary, because it's integer with an implied decimal point, it has a fixed precision in decimal.

characters (strings) are an array of bytes (or words depending on charset size). concatenation is done by allocating a new array, and copying the source bytes to the target.

Answer 2

Hi,

CPU processes binary numbers directly.
It is recommended to use shift and add for multiplication.

  int i = 10;
  i=i << 1; // 10*2

Best regards,

Minxin Yu

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