Figure 4.

Approximate solution for<a onClick="popup('http://www.boundaryvalueproblems.com/content/2012/1/62/mathml/M177','MathML',630,470);return false;" target="_blank" href="http://www.boundaryvalueproblems.com/content/2012/1/62/mathml/M177">View MathML</a>,<a onClick="popup('http://www.boundaryvalueproblems.com/content/2012/1/62/mathml/M150','MathML',630,470);return false;" target="_blank" href="http://www.boundaryvalueproblems.com/content/2012/1/62/mathml/M150">View MathML</a>with 12 nodes, for Example 2.

Bhrawy and Alghamdi Boundary Value Problems 2012 2012:62   doi:10.1186/1687-2770-2012-62
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