Menelaus's theorem - Revision history

A WASSERMANN at 07:13, 3 May 2021

2021-05-03T07:13:41Z

← Older revision		Revision as of 07:13, 3 May 2021
Line 57:		Line 57:

	var TV = function(p,q,t) {		var TV = function(p,q,t) {
	~~return~~ p.Dist(t) / p.Dist(q);		var v = p.Dist(t) / p.Dist(q);
			if (JXG.Math.Geometry.isSameDir(p.coords, q.coords, p.coords, t.coords)) {
			return v;
			} else {
			return -v;
			}
	};		};

2021-05-03T07:12:55Z

← Older revision		Revision as of 07:12, 3 May 2021
Line 23:		Line 23:
	var TV = function(p,q,t) {		var TV = function(p,q,t) {
	var v = p.Dist(t) / p.Dist(q);		var v = p.Dist(t) / p.Dist(q);
	if (JXG.Math.Geometry.isSameDir(p, q, p, t)) {		if (JXG.Math.Geometry.isSameDir(p.coords, q.coords, p.coords, t.coords)) {
	return v;		return v;
	} else {		} else {

2021-05-03T07:11:47Z

← Older revision		Revision as of 07:11, 3 May 2021
Line 22:		Line 22:

	var TV = function(p,q,t) {		var TV = function(p,q,t) {
	~~return~~ p.Dist(t) / p.Dist(q);		var v = p.Dist(t) / p.Dist(q);
			if (JXG.Math.Geometry.isSameDir(p, q, p, t)) {
			return v;
			} else {
			return -v;
			}
	};		};

2021-05-02T20:40:04Z

@@ Line 1: / Line 1: @@
 <jsxgraph width="500" height="500">
 JXG.Options.label.autoPosition = true;
@@ Line 30: / Line 32: @@
 <source lang="javascript">
 </source>
 [[Category:Examples]]
 [[Category:Geometry]]

2021-05-02T20:38:10Z

← Older revision		Revision as of 20:38, 2 May 2021
Line 3:		Line 3:
	JXG.Options.text.fontSize = 24;		JXG.Options.text.fontSize = 24;

	var board = JXG.JSXGraph.initBoard("jxgbox", {boundingbox: [-5,5,5,-5], axis:~~true~~, showCopyright:false, showNavigation:false});		var board = JXG.JSXGraph.initBoard("jxgbox", {boundingbox: [-5,5,5,-5], axis:false, showCopyright:false, showNavigation:false});

	var a = board.create('point', [-1.7, 0], {name:'a'});		var a = board.create('point', [-1.7, 0], {name:'a'});
Line 23:		Line 23:
	};		};

	var txt = board.create('text', [-4.5, -3, function() {		var txt = board.create('text', [-4.5, -4, function() {
	return "TV(a',c,b) * TV(b',a,c) * TV(c',b,a) = " + (TV(as,c,b)TV(bs,a,c)TV(cs,b,a)).toFixed(2); }]);		return "TV(a',c,b) * TV(b',a,c) * TV(c',b,a) = " + (TV(as,c,b)TV(bs,a,c)TV(cs,b,a)).toFixed(2); }]);



	</jsxgraph>		</jsxgraph>

2021-05-02T20:37:44Z

← Older revision		Revision as of 20:37, 2 May 2021
Line 23:		Line 23:
	};		};

	var txt = board.create('text', [-3, -3, function() {		var txt = board.create('text', [-4.5, -3, function() {
	return "TV(a',c,b) * TV(b',a,c) * TV(c',b,a) = " + (TV(as,c,b)TV(bs,a,c)TV(cs,b,a)).toFixed(2); }]);		return "TV(a',c,b) * TV(b',a,c) * TV(c',b,a) = " + (TV(as,c,b)TV(bs,a,c)TV(cs,b,a)).toFixed(2); }]);

2021-05-02T20:37:16Z

← Older revision		Revision as of 20:37, 2 May 2021
Line 18:		Line 18:

	var cs = board.create('glider', [-3, 3.3, s3], {name: "c'"});		var cs = board.create('glider', [-3, 3.3, s3], {name: "c'"});

			var TV = function(p,q,t) {
			return p.Dist(t) / p.Dist(q);
			};

			var txt = board.create('text', [-3, -3, function() {
			return "TV(a',c,b) * TV(b',a,c) * TV(c',b,a) = " + (TV(as,c,b)TV(bs,a,c)TV(cs,b,a)).toFixed(2); }]);



	</jsxgraph>		</jsxgraph>

2021-05-02T20:33:16Z

← Older revision		Revision as of 20:33, 2 May 2021
Line 17:		Line 17:
	var s4 = board.create('line', [as, bs], {color: 'black'});		var s4 = board.create('line', [as, bs], {color: 'black'});

	var cs = board.create('~~intersection~~', [s3~~, s4~~], {~~color: 'black',~~ name: "c'"});		var cs = board.create('glider', [-3, 3.3, s3], {name: "c'"});

	</jsxgraph>		</jsxgraph>

2021-05-02T20:30:44Z

← Older revision		Revision as of 20:30, 2 May 2021
Line 13:		Line 13:
	var s3 = board.create('line', [a, b], {color: 'black'});		var s3 = board.create('line', [a, b], {color: 'black'});

	var as = board.create('glider', [2, 2, s2], {name: "a'"})		var as = board.create('glider', [2, 1.8, s2], {name: "a'"})
	var bs = board.create('glider', [-1, 1.5, s1], {name: "b'"})		var bs = board.create('glider', [-1, 1.5, s1], {name: "b'"})
			var s4 = board.create('line', [as, bs], {color: 'black'});

			var cs = board.create('intersection', [s3, s4], {color: 'black', name: "c'"});

	</jsxgraph>		</jsxgraph>

2021-05-02T20:29:23Z

← Older revision		Revision as of 20:29, 2 May 2021
Line 14:		Line 14:

	var as = board.create('glider', [2, 2, s2], {name: "a'"})		var as = board.create('glider', [2, 2, s2], {name: "a'"})
	var bs = board.create('glider', [-1, 1, s1], {name: "a'"})		var bs = board.create('glider', [-1, 1.5, s1], {name: "b'"})

	</jsxgraph>		</jsxgraph>