matlab求解方程的时候出现 is not a validexpression or equation.程序如下: syms thetafa psai alpha;syms xy z; eq1='x*x*(1-co (a+1)(a-1)=(a-1)^2-(a-1)^2=(a-1)^2=(a-1)^2eq2= 'x*y*(1-cos(alpha)z* sin(α+π/(1))=α∈(π-π/(1))∪(π/(1))si (0,+∞)z...
1Matlab出现is not a valid expression or equation.clear;syms theta x;solve('9.8*x*x/(tan(theta)*tan(theta))-(2*240000*(sqrt(7)-sqrt(4*cos(theta)+5))-196*(25+100)*(sin(theta)-sqrt(3)/2))*x/((1/3*5+100)*tan(theta))+9.8*x*x-2*10*sin(theta)*(240000*(sqrt(7)-sqrt...
matlab提示找不到解析解。错误在于如果你的方程中只有af是参数,m1,m2,n是已知的,不应该将符号m1,m2,n写入引号中,而应该将他们所对应的数值带入方程之后求解。不清楚的话继续追问
Matlab出现is not a valid expression or equation.clear;syms theta x;solve('9.8*x*x/(tan(theta)*tan(theta))-(2*240000*(sqrt(7)-sqrt(4*cos(theta)+5))-196*(25+100)*(sin(theta)-sqrt(3)/2))*x/((1/3*5+100)*tan(theta))+9.8*x*x-2*10*sin(theta)*(240000*(sqrt(7)-sqrt...
相似问题 Matlab出现is not a valid expression or equation. The expression to the left of the equals sign is not a valid target for an assignment. 特别推荐 热点考点 2022年高考真题试卷汇总 2022年高中期中试卷汇总 2022年高中期末试卷汇总 2022年高中月考试卷汇总 ...
syms t j k;S=solve('log(1+j*(20/3.6)^2/k)*1/(2*j)+20/3.6*t-6.5=0','t','j','k');St=S.t Sj=S.j Sk=S.k
‘is not a valid expression equation’!请大家看看怎么回事啊?应该怎样修改程序具体程序如下:gamma=2.856;angle=45.6*pi/180; symspsaintheta1*psain forpsail=45.6*pi/1800:45.6*pi/1800:45.6*p i/180m1=1+(gamma+1)-2/(gamma^*tan(pSail)) ;theta1=atan(tan(psail)/(1+gamma*(1+tan(psail)*...
' 2*1.5*(-0.05*sqrt(3)*A+2*pi*B/3)/2/pi=20 ' is not a valid expression or equation.没有错啊,怎么修改啊 扫码下载作业帮搜索答疑一搜即得 答案解析 查看更多优质解析 解答一 举报 复制下面的命令:S= solve('2*1.5*(-0.025*sqrt(3)*A+2*pi*B/3)/2/pi=10','2*1.5*(-0.05*sqrt(3...
1、程序里面的gamma没有用到 2、solve等号前面最好不要用x(因为你本身的未知量就是x,第一次循环...
>> [x,y] = solve('(x-1)^2+(y-2)^2-25=0','y-2x+1=0')Error using ==> solve>getEqns at 182' y-2x+1=0 ' is not a valid expression or equation.Error in ==> solve at 67[eqns,vars] = getEqns(varargin{:});ti请问是什么问题啊...