# QC_TYPE

> Controls the type of the quadratically-convergent algorithm (effective for ALGORITHM = QC). If set to TWOSTEP the Newton-Raphson equations are only solved for the orbital updates, the cumulant is updated using the standard Jacobi algorithm. If set to SIMULTANEOUS both cumulant and orbitals are updated in a single Newton-Raphson step.

> - Type: string
> - Possible Values: TWOSTEP, SIMULTANEOUS
> - Default: SIMULTANEOUS