One equals is used in an equation which is true, such as 5 + 3 = 8
Equals equals is used in computer programming as a question as to whether 2 things are equal. Like
If x == 4
perform this operation
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If you are referring to 'C' language programming:
A single equal sign is an assignment, a double equal sign is a comparison.
a = 7; /* An assignment. You are assigning the value of 7 to the variable called 'a' */
if (a == 7) /* A comparison. You are checking if the variable 'a' has the value of 7 */
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The difference between the two is 179, since -45 + 45 equals 0 and added on to 134 gives you a total of 179.
The difference between 1005g and 1.2kg is that 1.2kg is equivalent to 1200g. To find the difference, you would subtract 1005g from 1200g, which equals 195g. Therefore, the difference between 1005g and 1.2kg is 195g.
Nothing - 0, Zero and null are the same things
It equals 0.
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