mathematica7 plot 无法绘图程序如下b = 200; L = 12580;plot[x = -ArcSec[(2 (b^3 L + b L^3 - Sqrt[-b^4 L^2 R^2 + 2 b^2 L^4 R^2 - L^6 R^2 + 4 L^4 R^4]))/(b^4 + 2 b^2 L^2 + L^4 - 4 L^2 R^2)],{R,13000,15000}]我运行的结果见图

mathematica7 plot 无法绘图程序如下b = 200; L = 12580;plot[x = -ArcSec[(2 (b^3 L + b L^3 - Sqrt[-b^4 L^2 R^2 + 2 b^2 L^4 R^2 - L^6 R^2 + 4 L^4 R^4]))/(b^4 + 2 b^2 L^2 + L^4 - 4 L^2 R^2)],{R,13000,15000}]我运行的结果见图 mathematica7.0画散点折线图 maple 无法画图plot(cos((1/2)*x)+sin(2*x),x = 0 ..4*Pi);Error,(in plot) unknown optional arguments [true] mathematica7 ID6202-08547-78765 求 password 这个matlab的M文件为何无法绘制?close all clc clear t=[0:pi/25:8*pi]; y=sin(t); plot(t,y,'b:*'); 错误显示? Attempt to execute SCRIPT plot as a function. Error in ==> plot at 6 plot(t,y,'b:*');还有我在命令窗口输入文件名为何 plot是什么意思 Plot Summary matlab >> syms x y;x=linspace(0,2*pi,60);y=(sin(x)*cos(5*x));plot(x,y) 无法出图, matlab的问题x=8:1:22;y=100.*pow(0.3,10*x)/x;plot(x,y);grid on;怎么无法画图啊 x=linspace(0.0001,0.01,1000); y=sin(1./x); plot(x,y) axis([0.005 0.01 –1 1]) 为什么无法绘图 英语翻译help phytree/plot.mhelp cfit/plot.mhelp fints/plot.mhelp idmodel/plot.mhelp idfrd/plot.mhelp iddata/plot.mhelp cgrules/plot.mhelp xregtwostage/plot.mhelp xregtransient/plot.mhelp xregmodel/plot.mhelp xregarx/plot.mhelp localmulti/plot.mhe mathematica7定积分运算符在哪?mathematica7打开时右边没有运算符选择框,怎么才能打开运算符选择框呢 The plot against people. plot(x,y, “Plot theory”是什么意思? shmoo plot是什么意思 scree plot是什么意思 scree plot 怎么翻译