Nyob rau hauv lej, lub kernel ntawm ib daim ntawv qhia kab, tseem hu ua qhov chaw null lossis nullspace, yog cov kab subspace ntawm cov npe ntawm daim ntawv qhia uas yog mapped rau xoom vector.
Puas yog 0 hauv qhov chaw null?
Kev cuam tshuam ntawm nullity yog xoom. … Nyob rau hauv tas li ntawd, peb hais tias lub nullity ntawm qhov chaw null yog 0. Nco ntsoov tias qhov chaw null nws tus kheej tsis yog khoob thiab muaj ib lub ntsiab lus uas yog xoom vector.
Qhov chaw txhais li cas?
: a subspace ntawm ib qhov chaw vector uas muaj vectors uas nyob rau hauv ib qho kev hloov pauv tau muab kos rau xoom.
Is V in Nul A?
Recall that a vector v is in the nullspace N(A) if Av=0.
Puas B nyob hauv kab kab A?
Hauv seem no peb yuav txhais ob qhov chaw tseem ceeb cuam tshuam nrog matrix A, nws qhov chaw kab thiab nws qhov chaw tsis muaj. Lub kem qhov chaw ntawm ib qho m × n matrix A yog qhov dav ntawm kab ntawm A. … 2: A system Ax=bmuaj kev daws teeb meem (lub ntsiab lus tsawg kawg yog ib qho kev daws) yog tias, thiab tsuas yog yog tias, b yog nyob rau hauv kab ke ntawm A.
