Scientific Calculator

RRRaguindin/matrix2

By Raymond R. Raguindin

Solution of 2x2 Matrix Equations

Tagged: 2x2 equations matrix

var matrix2 = function() {
	var promptForNumber = function (text, title, default) {
		var result = false;
		while (result == false) -> result = number(prompt(text, title, default));
		result;
	};

	var a11 = promptForNumber( "Enter a value for a11", "a11", 1 );
	var a12 = promptForNumber( "Enter a value for a12", "a12", 0 );
	var k1 = promptForNumber( "Enter a value for k1", "k1", 1+1i );
	var a21 = promptForNumber( "Enter a value for a21", "a21", 0 );
	var a22 = promptForNumber( "Enter a value for a22", "a22", 1 );
	var k2 = promptForNumber( "Enter a value for k2", "k2", 3-4i );

        var coeff=[[a11,a12],[a21,a22]];
        var coeffk1=[[k1,a12],[k2,a22]];
        var coeffk2=[[a11,k1],[a21,k2]];

        var x=det(coeffk1)/det(coeff);
	var y=det(coeffk2)/det(coeff);

	alert(concat("x = ", string(x)));
        alert(concat("y = ", string(y)));
};

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