If a memory location is to contain a signed integer, then it will have a sign bit (zero means positive, one means negative). Also the negative numbers are represented by a complement (normally the two's complement). The article in the related link does a good explanation.
What this means: for example, an 8 bit location could represent 256 possible numbers. In an unsigned situation, this would be 0 to 255. But in a signed situation, the range is -128 to +127.
Bipolar
Wire carrying negative and positive charges in a closed circuit. It doesnt have earth.
She hoped the therapy would help her transform her negative thinking into a more positive outlook.
Positive + Negative = Negative Negative + Negative = Positive Positive + Positive = Positive Negative + Positive = Negative
Negative * positive = negative Positive * positive = positive Negative * negative = positive
The same as in many programming languages and other places where formulae are used. The negative sign can basically do one of the following: As a unary symbol (i.e., before a number), convert a positive to a negative, or a negative to a positive. For example, if "x" is positive, "-x" is negative, and vice versa. As a binary symbol (i.e., between two numbers), it means subtraction.
The rules for the sign (positive or negative) of the result of a multiplication is the same as division. For multiplication: Positive * Positive --> Positive Positive * Negative --> Negative Negative * Positive --> Negative Negative * Negative --> Positive For division: Positive / Positive --> Positive Positive / Negative --> Negative Negative / Positive --> Negative Negative / Negative --> Positive
All I know is that when a number is negative, you convert the decimal into binary and if it is negative you put 1111 before the binary digits.
Differential Manchester
6
Yes. Negative/negative = positive Postive/Positive = positive Negative/Positive - negative
Negative * positive = negative Positive * positive = positive Negative * negative = positive