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WP3 HOURGLASS ANALYSIS: HG-M2_D2_A1e-3
  description: high-stretch test
  matrix generation step: 2
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[1] Native K (HG-M2_D2_A1e-3_STIF2.mtx):
    BC-penalty entries           = 144 / 576
    penalty-overwritten DOFs     = 24 / 24
    directly observed entries    = 432 / 576
    recovered ||K||_F            = 5.000000e+05

[2] UEL log: 3 calls
    seq= 1  kstep=1 kinc=1  lflags=[1, 1, 1]  ||amatrx||=5.0000e+05
    seq= 2  kstep=2 kinc=1  lflags=[1, 1, 3]  ||amatrx||=5.0000e+05
    seq= 3  kstep=2 kinc=2  lflags=[1, 1, 1]  ||amatrx||=5.0000e+05

[3] Matrix generation call #2 (lflags=[1, 1, 3]):
    ||K_uel||_F                         = 5.050000e+05
    observed-entry error (432 entries) = 5.000000e-02
    recovered-full-matrix error         = 5.000000e-02
    max|ΔK| (observed)                  = 1.000000e+02
    UEL asymmetry ||K-K^T||/||K||       = 1.500e-05

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SUMMARY
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  Case: HG-M2_D2_A1e-3
  Matrix generation call: #2
  Recovered-full relative error: 5.000000e-02
  K_AA relative error: 1.23e-02 (+/- 0.00e+00)
  K_HH relative error: 3.45e-03 (+/- 0.00e+00)
  Native ||K||_F          = 5.000000e+05
  UEL ||K||_F             = 5.050000e+05
  RESULT: MISMATCH — sub-10% full tangent error
