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/hal_nxp-3.5.0/mcux/mcux-sdk/middleware/issdk/algorithms/sensorfusion/sources/
Dorientation.c1031 float fsqrt1plusudotv; // sqrt(1 + u.v) in fveqconjgquq() local
1035 fsqrt1plusudotv = sqrtf(fabsf(1.0F + fu[CHX] * fv[CHX] + fu[CHY] * fv[CHY] + fu[CHZ] * fv[CHZ])); in fveqconjgquq()
1036 pfq->q0 = ONEOVERSQRT2 * fsqrt1plusudotv; in fveqconjgquq()
1044 if (fsqrt1plusudotv != 0.0F) in fveqconjgquq()
1047 ftmp = ONEOVERSQRT2 / fsqrt1plusudotv; in fveqconjgquq()