[a,t]=solve('200*cos(a)*t=360','200*sin(a)*t-5*t∧2=160') 用matlab求该方程组...[a,t]=solve('200*cos(a)*t=360','200*sin(a)*t-5*t∧2=160') 用matlab求该方程组,得不到解是为什么得到a的解是z1,t=1.8/cos(z1)
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![[a,t]=solve('200*cos(a)*t=360','200*sin(a)*t-5*t∧2=160') 用matlab求该方程组...[a,t]=solve('200*cos(a)*t=360','200*sin(a)*t-5*t∧2=160') 用matlab求该方程组,得不到解是为什么得到a的解是z1,t=1.8/cos(z1)](/uploads/image/z/10052699-59-9.jpg?t=%5Ba%2Ct%5D%EF%BC%9Dsolve%28%27200%2Acos%28a%29%2At%EF%BC%9D360%27%2C%27200%2Asin%28a%29%2At-5%2At%E2%88%A72%EF%BC%9D160%27%29+%E7%94%A8matlab%E6%B1%82%E8%AF%A5%E6%96%B9%E7%A8%8B%E7%BB%84...%5Ba%2Ct%5D%EF%BC%9Dsolve%28%27200%2Acos%28a%29%2At%EF%BC%9D360%27%2C%27200%2Asin%28a%29%2At-5%2At%E2%88%A72%EF%BC%9D160%27%29+%E7%94%A8matlab%E6%B1%82%E8%AF%A5%E6%96%B9%E7%A8%8B%E7%BB%84%2C%E5%BE%97%E4%B8%8D%E5%88%B0%E8%A7%A3%E6%98%AF%E4%B8%BA%E4%BB%80%E4%B9%88%E5%BE%97%E5%88%B0a%E7%9A%84%E8%A7%A3%E6%98%AFz1%2Ct%EF%BC%9D1.8%2Fcos%28z1%29)
[a,t]=solve('200*cos(a)*t=360','200*sin(a)*t-5*t∧2=160') 用matlab求该方程组...[a,t]=solve('200*cos(a)*t=360','200*sin(a)*t-5*t∧2=160') 用matlab求该方程组,得不到解是为什么得到a的解是z1,t=1.8/cos(z1)
[a,t]=solve('200*cos(a)*t=360','200*sin(a)*t-5*t∧2=160') 用matlab求该方程组...
[a,t]=solve('200*cos(a)*t=360','200*sin(a)*t-5*t∧2=160')
用matlab求该方程组,得不到解是为什么
得到a的解是z1,t=1.8/cos(z1)
[a,t]=solve('200*cos(a)*t=360','200*sin(a)*t-5*t∧2=160') 用matlab求该方程组...[a,t]=solve('200*cos(a)*t=360','200*sin(a)*t-5*t∧2=160') 用matlab求该方程组,得不到解是为什么得到a的解是z1,t=1.8/cos(z1)
纠正“=”是中文状态下输入的,matlab不认
clc,clear all
S=solve('200*cos(a)*t=360','200*sin(a)*t-5*t^2=160');
S.a %求出a
S.t %求出t
输出结果:
S.a=
-2*atan((5*(8*9119^(1/2) + 768)^(3/2))/7048 - (980*(8*9119^(1/2) + 768)^(1/2))/881 - (9*9119^(1/2))/881 + 900/881)
2*atan((980*(768 - 8*9119^(1/2))^(1/2))/881 - (9*9119^(1/2))/881 - (5*(768 - 8*9119^(1/2))^(3/2))/7048 - 900/881)
-2*atan((980*(8*9119^(1/2) + 768)^(1/2))/881 - (9*9119^(1/2))/881 - (5*(8*9119^(1/2) + 768)^(3/2))/7048 + 900/881)
2*atan((5*(768 - 8*9119^(1/2))^(3/2))/7048 - (980*(768 - 8*9119^(1/2))^(1/2))/881 - (9*9119^(1/2))/881 - 900/881)
S.t=
(8*9119^(1/2) + 768)^(1/2)
(768 - 8*9119^(1/2))^(1/2)
-(8*9119^(1/2) + 768)^(1/2)
-(768 - 8*9119^(1/2))^(1/2)
你的程序有几个错误:
1,“=”是中文状态下输入的,matlab不认;
2,cos(a)*t 写法错误,改为:cos(a*t).
修改如下:
[a,t]=solve('200*cos(a*t)=360','200*sin(a*t)-5*t^2=160')
结果如下:
a =
1/4*atan(2...
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你的程序有几个错误:
1,“=”是中文状态下输入的,matlab不认;
2,cos(a)*t 写法错误,改为:cos(a*t).
修改如下:
[a,t]=solve('200*cos(a*t)=360','200*sin(a*t)-5*t^2=160')
结果如下:
a =
1/4*atan(2/5*i*14^(1/2),9/5)/(-2+i*14^(1/2))^(1/2)
-1/4*atan(2/5*i*14^(1/2),9/5)/(-2+i*14^(1/2))^(1/2)
-1/4*atan(-2/5*i*14^(1/2),9/5)/(2+i*14^(1/2))*(-2-i*14^(1/2))^(1/2)
1/4*atan(-2/5*i*14^(1/2),9/5)/(2+i*14^(1/2))*(-2-i*14^(1/2))^(1/2)
t =
4*(-2+i*14^(1/2))^(1/2)
-4*(-2+i*14^(1/2))^(1/2)
4*(-2-i*14^(1/2))^(1/2)
-4*(-2-i*14^(1/2))^(1/2)
收起