docs: public static BigDecimal cosh(BigDecimal x, MathContext mathContext) {
  		checkMathContext(mathContext);
  		MathContext mc = new MathContext(mathContext.getPrecision() + 4, mathContext.getRoundingMode());
  		BigDecimal result = CoshCalculator.INSTANCE.calculate(x, mc);
  		return round(result, mathContext);
  	}