输入字符无效在MATLAB语句或表达式sigmax4=(1/B^2)*(cos(sitar))^2*((sigmast)^2+(sigmas/rt)^2)/rr^2+((sigmasr)^2+(sigmas/rr)^2)*(cos(sitat)/rt)^2;sigmay4=(1/B^2)*(cos(sitar))^2*((sigmast)^2+(sigmas/rt)^2)/rr^2+((sigmasr)^2+(sigmas/
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![输入字符无效在MATLAB语句或表达式sigmax4=(1/B^2)*(cos(sitar))^2*((sigmast)^2+(sigmas/rt)^2)/rr^2+((sigmasr)^2+(sigmas/rr)^2)*(cos(sitat)/rt)^2;sigmay4=(1/B^2)*(cos(sitar))^2*((sigmast)^2+(sigmas/rt)^2)/rr^2+((sigmasr)^2+(sigmas/](/uploads/image/z/3686329-1-9.jpg?t=%E8%BE%93%E5%85%A5%E5%AD%97%E7%AC%A6%E6%97%A0%E6%95%88%E5%9C%A8MATLAB%E8%AF%AD%E5%8F%A5%E6%88%96%E8%A1%A8%E8%BE%BE%E5%BC%8Fsigmax4%3D%281%2FB%5E2%29%2A%28cos%28sitar%29%29%5E2%2A%28%28sigmast%29%5E2%2B%28sigmas%2Frt%29%5E2%29%2Frr%5E2%2B%EF%BC%88%28sigmasr%29%5E2%2B%28sigmas%2Frr%29%5E2%EF%BC%89%2A%EF%BC%88cos%28sitat%29%2Frt%EF%BC%89%5E2%3Bsigmay4%3D%281%2FB%5E2%29%2A%28cos%28sitar%29%29%5E2%2A%28%28sigmast%29%5E2%2B%28sigmas%2Frt%29%5E2%29%2Frr%5E2%2B%EF%BC%88%28sigmasr%29%5E2%2B%28sigmas%2F)
输入字符无效在MATLAB语句或表达式sigmax4=(1/B^2)*(cos(sitar))^2*((sigmast)^2+(sigmas/rt)^2)/rr^2+((sigmasr)^2+(sigmas/rr)^2)*(cos(sitat)/rt)^2;sigmay4=(1/B^2)*(cos(sitar))^2*((sigmast)^2+(sigmas/rt)^2)/rr^2+((sigmasr)^2+(sigmas/
输入字符无效在MATLAB语句或表达式
sigmax4=(1/B^2)*(cos(sitar))^2*((sigmast)^2+(sigmas/rt)^2)/rr^2+((sigmasr)^2+(sigmas/rr)^2)*(cos(sitat)/rt)
^2;
sigmay4=(1/B^2)*(cos(sitar))^2*((sigmast)^2+(sigmas/rt)^2)/rr^2+((sigmasr)^2+(sigmas/rr)^2)*(sin(sitat)/rt)
^2;
其中B=sin(sitar-sitat)/(rt*rr);运行结果显示?sigmax4=(1/B^2)*(cos(sitar))^2*((sigmast)^2+(sigmas/rt)^2)/rr^2+((sigmasr)^2+(sigmas/rr)^2)*(cos(sitat)/rt)
Error:The input character is not valid in MATLAB statements or expressions.
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输入字符无效在MATLAB语句或表达式sigmax4=(1/B^2)*(cos(sitar))^2*((sigmast)^2+(sigmas/rt)^2)/rr^2+((sigmasr)^2+(sigmas/rr)^2)*(cos(sitat)/rt)^2;sigmay4=(1/B^2)*(cos(sitar))^2*((sigmast)^2+(sigmas/rt)^2)/rr^2+((sigmasr)^2+(sigmas/
syms B sitar rt sigmast sigmas rr sigmasr sitat
sigmax4=(1/B^2)*(cos(sitar))^2*((sigmast)^2+(sigmas/rt)^2)/rr^2+((sigmasr)^2+(sigmas/rr)^2)*(cos(sitat)/rt)^2;
sigmay4=(1/B^2)*(cos(sitar))^2*((sigmast)^2+(sigmas/rt)^2)/rr^2+((sigmasr)^2+(sigmas/rr)^2)*(sin(sitat)/rt)^2;