/src/main/java/net/finmath/marketdata/model/volatility/caplet/tenorconversion/CorrelationProviderTenorBasis.java
float derivativeSumToMinimize = 0.0;
double derivativeSumToMinimize = 0.0;
capletFixingTimeVectorInYears[i * 2 + 1] + k * iCap3MCapVolMarketData.getUnderlyingTenorInMonths() / 12.0))) / sumNu[i]; } final double guess = 1.0; final NewtonsMethod newtonsMethod = new NewtonsMethod(guess); <extra_id_0> double secondDerivativeSumToMinimize = 0.0; double rightHandSideSum = 0.0; double derivativeRightHandSideSum = 0.0; for (int k1 = 0; k1 < 2; k1++) { for (int k2 = 0; k2 < 2; k2++) { if (k1 == k2) {