Equation 4 · Part 2 · Evaluating Trajectories, Not Answers
Symbol barc
What this part means
barc occurs above the fraction bar. The numerator is divided by the entire denominator below it.
Its job in the formula
barc occurs above the fraction bar. The numerator is divided by the entire denominator below it.
Full expression→Symbol barc→Article meaning
The passage around this formula
There is also a structural reason cost cannot be separated from reliability. If a run costs on average and succeeds with probability p , and the operator simply retries until success, the expected spend to first success is . which means a cheap unreliable agent and an expensive reliable one can occupy the same operating point. Reporting either number alone conceals which one you have bought. The honest artefact is a curve — quality against spend, produced by sweeping the effort level and the retry policy — rather than a point, and the honest comparison places two systems at matched spend and asks which reaches further.
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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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