Derivative step sensitivity grid StatMedAnalysis | 14 November 2026 Compare finite differences across step sizes. Keep the evaluation method fixed, halve the step and repeat. Check domain boundaries. Agreement across steps is a sensitivity check, not proof of exactness. Use synthetic or aggregate values only. Duplicate the blank row for additional records. Location | Step | Left evaluation | Center evaluation | Right evaluation | Forward | Centered | Change ________ | ________ | ________ | ________ | ________ | ________ | ________ | ________ Fictional example: For x squared at x=2 with step 0.1, evaluations are 3.61,4,4.41; centered slope is 4. Completed by / version / date: _____________________ Unresolved discrepancies and action: _____________________