20 lines
511 B
TypeScript
20 lines
511 B
TypeScript
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export const PHANTOM_ANTE = 200;
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export const calcStartPool = (initialProbInt: number, ante?: number) => {
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const p = initialProbInt / 100.0;
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const totalAnte = PHANTOM_ANTE + (ante || 0);
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const poolYes =
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p === 0.5
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? p * totalAnte
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: -(totalAnte * (-p + Math.sqrt((-1 + p) * -p))) / (-1 + 2 * p);
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const poolNo = totalAnte - poolYes;
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const f = PHANTOM_ANTE / totalAnte;
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const startYes = f * poolYes;
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const startNo = f * poolNo;
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return { startYes, startNo, poolYes, poolNo };
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};
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