29 lines
1.2 KiB
JavaScript
29 lines
1.2 KiB
JavaScript
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function Complex(real, imaginary) {
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this.real = 0;
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this.imaginary = 0;
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this.real = (typeof real === 'undefined') ? this.real : parseFloat(real);
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this.imaginary = (typeof imaginary === 'undefined') ? this.imaginary : parseFloat(imaginary);
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}
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Complex.transform = function(num) {
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var complex;
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complex = (num instanceof Complex) ? num : complex;
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complex = (typeof num === 'number') ? new Complex(num, 0) : num;
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return complex;
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};
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function display_complex(re, im) {
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if(im === '0') return '' + re;
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if(re === 0) return '' + im + 'i';
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if(im < 0) return '' + re + im + 'i';
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return '' + re + '+' + im + 'i';
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}
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function complex_num_multiply(first, second) {
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var num1, num2;
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num1 = Complex.transform(first);
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num2 = Complex.transform(second);
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var real = (num1.real * num2.real)-(num1.imaginary * num2.imaginary);
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var imaginary = (num1.real * num2.imaginary)+(num1.imaginary * num2.real);
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return display_complex(real, imaginary);
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}
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var a = new Complex(2, -7);
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var b = new Complex(4, 3);
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console.log(complex_num_multiply(a,b));
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