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src/main/js/formulas/math/ACOTH.ts
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1import { NumException } from "../../errors/NumException";
2import { SheetColumnRowKey } from "../../models/common/SheetColumnRowKey";
3import { Complex } from "../../models/common/Types";
4import { Converters } from "../../utils/Converters";
5import { AbstractFormula } from "../AbstractFormula";
6import { FormulaName } from "../FormulaName";
7
8export class ACOTH extends AbstractFormula {
9 static SELF: ACOTH = new ACOTH();
10 NAME = FormulaName.ACOTH;
11
12 internal(origin: SheetColumnRowKey, ...values: Array<Complex>) {
13 AbstractFormula.checkLength(values.length, 1, this.NAME);
14 const value = Converters.toNumber(Converters.first(this.collateralLookup(origin, values[0])));
15 if (value <= 1 && value >= -1) {
16 throw new NumException(
17 `ACOTH parameter 1 value is ${value}. Valid values cannot be between -1 and 1 inclusive.`
18 );
19 }
20 return 0.5 * Math.log((value + 1) / (value - 1));
21 }
22}