Wiki-Quellcode von Tipp Drei Geraden
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| author | version | line-number | content |
|---|---|---|---|
| 1 | Zwei Geraden heißen | ||
| 2 | * parallel, wenn ihre Richtungsvektoren linear abhängig sind. Besitzen die Geraden zudem einen gemeinsamen Punkt, dann heißen sie identisch, ansonsten echt parallel. | ||
| 3 | * windschief, wenn sie nicht parallel sind und keinen gemeinsamen Punkt besitzen. | ||
| 4 | |||
| 5 | Um die Lage zweier Geraden zu einander zu prüfen, prüfen wir, on die Richtungsvektoren Vielfache von einander sind/linear abhängig von einander sind und setzen zudem die beiden Geradengleichungen gleich und prüfen, ob das dadurch entstehende LGS eine/mehere Lösungen besitzt oder unlösbar ist: | ||
| 6 | |||
| 7 | {{html}} | ||
| 8 | <div style="text-align:center; font-family:sans-serif; width:1050px; margin:0 auto; transform:scale(0.85); transform-origin:top center;"> | ||
| 9 | |||
| 10 | <div style="position:relative; width:1050px; height:0;"> | ||
| 11 | <svg width="1050" height="350" style="position:absolute; top:0; left:0; pointer-events:none;"> | ||
| 12 | <line x1="525" y1="45" x2="180" y2="120" style="stroke:black; stroke-width:2" /> | ||
| 13 | <line x1="525" y1="45" x2="525" y2="120" style="stroke:black; stroke-width:2" /> | ||
| 14 | <line x1="525" y1="45" x2="870" y2="120" style="stroke:black; stroke-width:2" /> | ||
| 15 | |||
| 16 | <line x1="870" y1="165" x2="770" y2="215" style="stroke:black; stroke-width:2" /> | ||
| 17 | <line x1="870" y1="165" x2="970" y2="215" style="stroke:black; stroke-width:2" /> | ||
| 18 | </svg> | ||
| 19 | </div> | ||
| 20 | |||
| 21 | |||
| 22 | <div style="margin-bottom:85px; position:relative; z-index:2;"> | ||
| 23 | <div style="font-size:32px; font-weight:bold; background:white; display:inline-block; padding:0 15px;">LGS</div> | ||
| 24 | </div> | ||
| 25 | |||
| 26 | |||
| 27 | <div style="display:flex; justify-content:flex-start; align-items:flex-start; position:relative; z-index:2;"> | ||
| 28 | |||
| 29 | |||
| 30 | <div style="width:360px;"> | ||
| 31 | <div style="font-size:20px; background:white; display:inline-block; padding:0 10px;">eindeutig lösbar</div> | ||
| 32 | <div style="height:60px; border-left:2px solid black; width:0; margin:10px auto;"></div> | ||
| 33 | <div style="display:inline-block; background:#b7bdf5; padding:8px 20px; font-size:18px; border:1px solid #9ea5e0; font-weight:bold; box-shadow: 2px 2px 0px #9ea5e0;"> | ||
| 34 | Schnittpunkt | ||
| 35 | </div> | ||
| 36 | </div> | ||
| 37 | |||
| 38 | |||
| 39 | <div style="width:330px;"> | ||
| 40 | <div style="font-size:20px; background:white; display:inline-block; padding:0 10px;">mehrdeutig lösbar</div> | ||
| 41 | <div style="height:60px; border-left:2px solid black; width:0; margin:10px auto;"></div> | ||
| 42 | <div style="display:inline-block; background:#b7bdf5; padding:8px 20px; font-size:18px; border:1px solid #9ea5e0; font-weight:bold; box-shadow: 2px 2px 0px #9ea5e0;"> | ||
| 43 | identisch | ||
| 44 | </div> | ||
| 45 | </div> | ||
| 46 | |||
| 47 | |||
| 48 | <div style="width:360px;"> | ||
| 49 | <div style="font-size:20px; background:white; display:inline-block; padding:0 10px;">unlösbar</div> | ||
| 50 | |||
| 51 | <div style="display:flex; justify-content:space-between; margin-top:65px;"> | ||
| 52 | <!-- linear abhängig --> | ||
| 53 | <div style="width:170px;"> | ||
| 54 | <div style="font-size:16px; height:45px; display:flex; align-items:center; justify-content:center;">Richtungsvektoren<br>linear abhängig</div> | ||
| 55 | <div style="height:45px; border-left:2px solid black; width:0; margin:10px auto;"></div> | ||
| 56 | <div style="display:inline-block; background:#b7bdf5; padding:8px 15px; font-size:17px; border:1px solid #9ea5e0; font-weight:bold; box-shadow: 2px 2px 0px #9ea5e0;"> | ||
| 57 | echt parallel | ||
| 58 | </div> | ||
| 59 | </div> | ||
| 60 | |||
| 61 | |||
| 62 | <div style="width:170px;"> | ||
| 63 | <div style="font-size:16px; height:45px; display:flex; align-items:center; justify-content:center;">Richtungsvektoren<br>linear unabhängig</div> | ||
| 64 | <div style="height:45px; border-left:2px solid black; width:0; margin:10px auto;"></div> | ||
| 65 | <div style="display:inline-block; background:#b7bdf5; padding:8px 15px; font-size:17px; border:1px solid #9ea5e0; font-weight:bold; box-shadow: 2px 2px 0px #9ea5e0;"> | ||
| 66 | windschief | ||
| 67 | </div> | ||
| 68 | </div> | ||
| 69 | </div> | ||
| 70 | </div> | ||
| 71 | |||
| 72 | </div> | ||
| 73 | </div> | ||
| 74 | {{/html}} |