《符號計算》word版

1、.1. 微分diffsym'cosx+sinx-ex' ans =cosx - sinx - ex*loge diff cosxWarning: The method char/diff will be removed in a future release. Use sym/diff instead. For example diffsym'x2'. After removal diff'x2' will return diffdouble'x2'.> In char.diff at 10ans =-sinx 2. 積分s

2、yms x y z;F2=intintintx2+y2+z2,z,sqrtx*y,x2*y,y,sqrtx,x2,x,1,2VF2=vpaF2 Warning: Explicit integral could not be found.? Error using => mupadmexError in MuPAD command: Recursive definition See ?MAXDEPTH;during evaluation of 'hastype'Error in => at 56 r = mupadmex'symobj:intd

3、ef',f.s,x.s,a.s,b.s; 3. 用MUPADF2=intintintx2+y2+z2,z=sqrtx*y.x2*y,y=sqrtx.x2,x=1.24. 矩陣M=sym'a b;c d' M = a, b c, d detM ans =a*d - b*c diffsym'xn', sym'n' ans =xn*logx 5. 符號演示a1=1/3,pi/7, sqrt5,pi+sqrt5a2=sym1/3,pi/7, sqrt5,pi+sqrt5a3=sym1/3,pi/7, sqrt5,pi+sqrt5,'e&#

4、39;a4=sym'1/3,pi/7, sqrt5,pi+sqrt5' a1 = 0.3333 0.4488 2.2361 5.3777a2 = 1/3, pi/7, 51/2, 189209612611719/35184372088832a3 = 1/3 - eps/12, pi/7 - 13*eps/165, 137*eps/280 + 51/2, 189209612611719/35184372088832a4 = 1/3, pi/7, 51/2, pi + 51/2 6. 化減表達式y(tǒng)=sym'2*sinx*cosx'y=simpley y =2*cos

5、x*sinxy =sin2*x syms A t tao w;yf=intA*exp-i/w*t,t,-tao/2,tao/2;Yf=simpleyf Yf =A*w*sinh6*tao/w/6 7. 別離分母與分子f=sym'a*x2/b-x'n,d=numdenf f =a*x2/b - xn =a*x2d =b - x 8. 函數(shù)復(fù)合syms x y z t u;f = 1/1 + x2; g = siny; h = xt; p = exp-y/u;a = composef,gjia=f+g jian=f/g a =1/siny2 + 1jia =siny + 1/x2 + 1jian =1/siny*x2 + 1 9. 求反函數(shù)syms f x g;f=x2;g=1/tanx;finverseffinverseg Warning: Functional inverse is not unique. 結(jié)果不唯一> In D:Program FilesMATLABR2020atoolboxsymbolicsymbolicsymengine.p>symengine at 52 In sym.finverse at 41ans =x