Qiime sugan ((Af-Ingiriis: Absolute Value)) waa Fansaar xisaabeed waxaana lagu gartaa saddexdaan astaamood: Hadii | | u | | {\displaystyle ||u||} ay le'egtahay eber markaa u = 0 {\displaystyle u=0} wuxuu noqnayaa u ≠ 0 {\displaystyle u\neq 0} oo ah | | u | | {\displaystyle ||u||} ka weyn eber | | λ u | | = | λ | . | | u | | {\displaystyle ||\lambda u||=|\lambda |.||u||} | | u 1 + u 2 | | ≤ | | u 1 | | + | | u 2 | | {\displaystyle ||u_{1}+u_{2}||\leq ||u_{1}||+||u_{2}||} Qiimaha suga ee tira kasta waa tiro togan waxay doonto tirada markii hore ha ahaatee. Qiimaha sugan ee xarriiqa tirada < . . . . .