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Difference between RUNTYP=GRADIENT and RUNTYP=NUMGRAD

GrEv
grevgen13@gmail.com

Hello,

I am just curios what is the computational difference between  RUNTYP=GRADIENT and RUNTYP=NUMGRAD in calculating the gradient numerically? (I presume, result-wise, they are identical). The manual says NUMGRAD is "a slightly cheaper alternative to GRADIENT".

Best regards,
Evgeniy

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