# exemple du math 4

x 2 + v 2 v S rank matrix-rank u v 1 x 1 3 1 3 x 1 3

&IndentingNewLine; ⁠ &GoodBreak; &BadBreak; &Space; ​          &VeryThickSpace; ​ ​ ​ ​ ⁣ ⁣ ⁢ ⁢ ⁡ ⁡

ⅅ ⅅ ⅆ ⅆ ⅇ ⅇ &false; ⅈ ⅈ &NotANumber; &true;

&LeftSkeleton; &RightSkeleton; &LeftBracketingBar; &RightBracketingBar; &LeftDoubleBracketingBar; &RightDoubleBracketingBar; ─ | ≔ ❘ ⫤ ⫤ ⥰ ⊏̸ ⊐̸ ⊈ ⊈ ⊉ ⊉ ⥐ ⥞ ⥖ ⥟ ⥗ ⇤ ⇤ ⥎ ↤ ↤ ⥚ ⥒ ⇥ ⇥ ⥛ ⥓ ⩵ ⪢ ≫ ⧏ ⪡ ≪ ≭ &nasymp; ≂̸ ≂̸ ≎̸ ≎̸ ≏̸ ≏̸ ⧏̸ ⪢̸ ⪡̸ &NotPrecedesTilde; ⪯̸ ⧐̸ ≿̸ ⧐ ∏ ∏ ⋄ ⋄ ⨯ □ □ ⤓ ↧ ↧ ⥡ ⥙ ⥑ ⥠ ⥘ ⥝ ⥕ ⥏ ⥜ ⥔ ↓ ↑ ⤒ ↥ ↥ ̑ ‾ ⏞ ⎴ ⏜ _ ⏟ ⎵ ⏝ ▫ ▪ ◻ ◼ ⧴