+ int lengthIP; // for convenience, set in createInputPattern()\r
+ int lengthCP; // for convenience, set in createConsumptionPattern()\r
+ int lengthAP; // for convenience, set in createAdmittance()\r
+ int lengthPP; // for convenience, set in createProductionPattern()\r
+ int lengthOP; // for convenience, set in computeOutputPattern()\r