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The expression comes from sequences. Given a sequence U1, U2, U3, ... the first differences are (U2 - U1), (U3 - U2), (U4 - U3) and so on.
If you consider these as the sequence V1, V2, v3, ... then the second differences in U are the first differences in V. So the second diffs are:
V2 - V1 = (U3 - U2) - (U2 - U1) = U3 - 2*U2 + U1
V3 - V2 = (U4 - U3) - (U3 - U2) = U4 - 2*U3 + U2, and so on.
What else can I help you with?
What is the difference between twice and double in math?
I don't think there is a difference.
What is the answer to a math problem called when numbers are subtracted?
This is known as the "Difference".
What is the difference between maths and add math?
add math is harder...but not particularly different in style. If you like math you'll like it more, if you don't like math this won't be any different.
What does net change mean in math terms?
when you are finished with everything what is the difference from where you started to when you ended
What is the difference between rational and irrational in math?
Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction.
What does difference in math?
Subtraction followed by modulus does difference.
What is the difference in a math sentence?
Difference means you subtract
What is the difference 6 in math?
The difference is the answer in a subtraction problem.
What is the difference of math?
The Difference of math is when you subtract 2 numbers and get the number between it. Example: 30 -20 _____ 10 The difference there would be 10.
Is there a difference between an operation in math and an equation in math?
The answer is I dont like math sorry!! :D
What is difference between math and math?
Nothing as they are both abbreviations for mathematics.
What is the difference from a math problem?
The difference is nthe number answer after subtracting.
What does difference of a number mean on math?
the answer to a subtraction question is the difference.
What is the difference called?
well in math the difference means subtraction
What does the differences do in math?
Difference in math is subtraction. For example, the difference between 10 and 7 is 3 (10 - 7 = 3).
What is the difference between academic math and reg math?
academic math is more harder than applied or regular math.
How do you solve for difference in math?
Subtraction.
