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Equation 91 · Part 1 · No Particle Without a Cosigner

Symbol delta

δa/a\delta a/a
δ\delta

What this part means

delta is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.

Its job in the formula

delta is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.

The passage around this formula

…physical difference should produce a comparably graded disagreement rather than a large one. This is the sense in which the coefficient 0.394 is an exact result: it is the exact leading term of a convergent expansion in δ\delta a/a , obtained from an exact closed-form spectral shape by ordinary calculus, with the only numerical step being the solution of one transcendental equation to a stated precision. It is illustrative, not a report of anything measured, and it says nothing about accelerations that are not…

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Learn the underlying idea

A variable is a named place for a value. Its letter is a local label: x can mean position in one formula and a data point in another.

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Sources cited in the article section

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