#来自在线整数序列百科全书的问候!http://oeis.org/搜索:id:a199384显示第1-1页,共1页%我A199384%S A199384 4,5,1,8,0,1,2,3,4,3,3,3,7,3,7,3,4,0,6,1,3,1,3,7,2,4,2,9,8,3,0,8,1,3,%电话A199384 6,6,9,8,9,3,2,6,6,9,2,4,2,7,1,7,1,5,3,1,1,3,6,6,5,4,2,3,3,9,6,9,5,4,%U A199384 6,0,8,2,7,9,8,0,4,3,6,4,6,3,1,9,3,2,6,5,7,0,6,5,5,1,7,3,1,2,9%N A199384 x>0的十进制展开式,满足2*x^2+3*x*sin(x)=1。%C A199384有关相关序列的指南,请参阅A199370。程序包括一个数学图。%e A199384 x=0.451801234333737406131337242983081366989326。。。%t A199384 a=2;b=3;c=1;%t A199384 f【x】:=a*x^2+b*x*Sin[x];g[x]:=c%t199384绘图[{f[x],g[x]},{x,-1,Pi},{AxesOrigin->{0,0}}}]%t A199384 r=x/。FindRoot[f[x]==g[x],{x,.45,.46},工作精度->110]%t A199384实数[r](*A199384*)%Y A199384,参见A199370。%K A199384无,cons%O A199384 0,1%A A199384克拉克•金伯利,2011年11月5日#根据OEIS最终用户许可协议提供内容:http://oeis.org/LICENSE