1<math xmlns="http://www.w3.org/1998/Math/MathML" display="block" > 2 <mtable columnalign="left" class="align"> 3 <mtr> 4 <mtd columnalign="right" class="align-odd"> 5 <msub> 6 <mrow > 7 <mi >R</mi> 8 </mrow> 9 <mrow > 10 <mi >F</mi> 11 </mrow> 12 </msub > 13 <mrow > 14 <mo class="MathClass-open">(</mo> 15 <mrow> 16 <mi >x</mi> 17 <mo class="MathClass-punc">,</mo> 18 <mi >y</mi> 19 <mo class="MathClass-punc">,</mo> 20 <mi >z</mi> 21 </mrow> 22 <mo class="MathClass-close">)</mo> 23 </mrow> 24 </mtd> 25 <mtd class="align-even"> 26 <mo class="MathClass-rel">=</mo> 27 <mn>2</mn> 28 <msub> 29 <mrow > 30 <mi >R</mi> 31 </mrow> 32 <mrow > 33 <mi >F</mi> 34 </mrow> 35 </msub > 36 <mrow > 37 <mo class="MathClass-open">(</mo> 38 <mrow> 39 <mi >x</mi> 40 <mo class="MathClass-bin">+</mo> 41 <mi >λ</mi> 42 <mo class="MathClass-punc">,</mo> 43 <mi >y</mi> 44 <mo class="MathClass-bin">+</mo> 45 <mi >λ</mi> 46 <mo class="MathClass-punc">,</mo> 47 <mi >z</mi> 48 <mo class="MathClass-bin">+</mo> 49 <mi >λ</mi> 50 </mrow> 51 <mo class="MathClass-close">)</mo> 52 </mrow> 53 <mspace width="2em"/> 54 </mtd> 55 <mtd columnalign="right" class="align-label"></mtd> 56 <mtd class="align-label"> 57 <mspace width="2em"/> 58 </mtd> 59 </mtr> 60 <mtr> 61 <mtd columnalign="right" class="align-odd"></mtd> 62 <mtd class="align-even"> 63 <mo class="MathClass-rel">=</mo> 64 <msub> 65 <mrow > 66 <mi >R</mi> 67 </mrow> 68 <mrow > 69 <mi >F</mi> 70 </mrow> 71 </msub > 72 <mfenced separators="" open="(" close=")" > 73 <mrow> 74 <mfrac> 75 <mrow > 76 <mi >x</mi> 77 <mo class="MathClass-bin">+</mo> 78 <mi >λ</mi> 79 </mrow> 80 <mrow > 81 <mn>4</mn> 82 </mrow> 83 </mfrac> 84 <mo class="MathClass-punc">,</mo> 85 <mfrac> 86 <mrow > 87 <mi >y</mi> 88 <mo class="MathClass-bin">+</mo> 89 <mi >λ</mi> 90 </mrow> 91 <mrow > 92 <mn>4</mn> 93 </mrow> 94 </mfrac> 95 <mo class="MathClass-punc">,</mo> 96 <mfrac> 97 <mrow > 98 <mi >z</mi> 99 <mo class="MathClass-bin">+</mo> 100 <mi >λ</mi> 101 </mrow> 102 <mrow > 103 <mn>4</mn> 104 </mrow> 105 </mfrac> 106 </mrow> 107 </mfenced> 108 <mspace width="2em"/> 109 </mtd> 110 <mtd columnalign="right" class="align-label"></mtd> 111 <mtd class="align-label"> 112 <mspace width="2em"/> 113 </mtd> 114 </mtr> 115 <mtr> 116 <mtd columnalign="right" class="align-odd"> 117 <mi >λ</mi> 118 </mtd> 119 <mtd class="align-even"> 120 <mo class="MathClass-rel">=</mo> 121 <msqrt> 122 <mrow> 123 <mi >x</mi> 124 <mi >y</mi> 125 </mrow> 126 </msqrt> 127 <mo class="MathClass-bin">+</mo> 128 <msqrt> 129 <mrow> 130 <mi >y</mi> 131 <mi >z</mi> 132 </mrow> 133 </msqrt> 134 <mo class="MathClass-bin">+</mo> 135 <msqrt> 136 <mrow> 137 <mi >z</mi> 138 <mi >x</mi> 139 </mrow> 140 </msqrt> 141 <mspace width="2em"/> 142 </mtd> 143 <mtd columnalign="right" class="align-label"></mtd> 144 <mtd class="align-label"> 145 <mspace width="2em"/> 146 </mtd> 147 </mtr> 148 </mtable> 149</math>