贝塞尔函数和纽曼函数是常用的数学函数，本程序是利用VC++编译的绘制贝塞尔纽曼函数的程序，值的一下-Bessel function and Neumann function is commonly used mathematical functions, the procedure is to use VC++ Compiler drawing function besse Newman procedures, the value of the click
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