matlab积分出错:Explicit integral could not be found.syms x;int((cos(pi*cos(x))+1)^2/sin(x),0,pi)Warning:Explicit integral could not be found.有什么其他的方法,可以找到这个积分的解?

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/12 05:17:59
matlab积分出错:Explicit integral could not be found.syms x;int((cos(pi*cos(x))+1)^2/sin(x),0,pi)Warning:Explicit integral could not be found.有什么其他的方法,可以找到这个积分的解?

matlab积分出错:Explicit integral could not be found.syms x;int((cos(pi*cos(x))+1)^2/sin(x),0,pi)Warning:Explicit integral could not be found.有什么其他的方法,可以找到这个积分的解?
matlab积分出错:Explicit integral could not be found.
syms x;
int((cos(pi*cos(x))+1)^2/sin(x),0,pi)
Warning:Explicit integral could not be found.
有什么其他的方法,可以找到这个积分的解?

matlab积分出错:Explicit integral could not be found.syms x;int((cos(pi*cos(x))+1)^2/sin(x),0,pi)Warning:Explicit integral could not be found.有什么其他的方法,可以找到这个积分的解?
clear;clc
df=@(x)(cos(pi*cos(x))+1).^2./sin(x)
quad(df,0,pi)

matlab积分出错:Explicit integral could not be found.syms x;int((cos(pi*cos(x))+1)^2/sin(x),0,pi)Warning:Explicit integral could not be found.有什么其他的方法,可以找到这个积分的解? Matlab 出错 matlab出错, matlab 不定积分,数值积分,Explicit integral could not be found.数值积分的那些方法可以做不定积分么?用了符号积分,解不出来,显示Explicit integral could not be found. Explicit matlab 求和的出错 matlab求积分:y=sin(x),t=y^2/(a+b*y),积分范围(0,pi),我是这样编写的: syms x a by=sin(x);int(y^2/(b*y+a),0,pi)结果显示:Warning: Explicit integral could not be found. 求高手指点下,错在哪里,我该怎么求这个积分 matlab定积分问题我做一个定积分,函数为exp(-10-x)*besseli(0,2*(10*x)^0.5)积分区间为x=0到1,besseli是修正贝塞尔函数,0表示0阶.结果显示warning: Explicit integral could not be found. 算式如下:syms x;int 如何使用Matlab求解复杂的微分方程组用最简单的dsolve提示Explicit solution could not be found.然后就不知道自己列的方程是否出错了,(应该没错),所以想知道求解复杂微分方程的一些代码或者思路 matlab计算定积分 matlab 计算定积分, matlab 定积分 matlab计算积分 matlab求变上限积分对变量x的导数求下列变上限积分对变量x的导数 syms x a tf=sym('sqrt(a+t) '),int(f,x,x^2)错在哪里了? Warning:Explicit integral could not be found.ans =piecewise([a in Dom::ImageSet(y*i,y,R_),(2*(x^ 为什么在matlab中求以下积分会出现Warning: Explicit integral could not be found. 应该怎么解决?我想要这个积分的表达式,谢谢了!v0=L*int(2*a*sqrt(1-(y-b)^2/b^2),y,0,h); matlab打开出错,请问怎么解决? matlab int函数积分后怎么得不出精确值SNR = 4;SNRP = power(10,SNR/10);syms x;M=4;p = (1 - (1 - qfunc(x)).^(M-1)).*exp(-(x - sqrt(2 .* SNRP)).^2./2);Q = int(p,-500,500)得出的结果为:>> P_OR_errorWarning:Explicit integral could not be MATLAB求积分的数值解我的程序及运行如下:>> syms x;>> y=inline('0.579/((2*pi*0.3176)^0.5*x^1.5)*exp(-(x-0.579)^2/(2*0.3176*x))','x');>> int(x*exp(-3*x)*y(x),x,0,inf)Warning:Explicit integral could not