matlab解多二元方程组,求助学霸

将solve函数改用vpasolve函数,即

[dz,k]=vpasolve(fx1,fx2)

运行结果如下。



  • matlab瑙e浜屽厓鏂圭▼缁,姹傚姪瀛﹂湼
    绛旓細灏唖olve鍑芥暟鏀圭敤vpasolve鍑芥暟锛屽嵆 [dz,k]=vpasolve(fx1,fx2)杩愯缁撴灉濡備笅銆
  • MATLAB 姹備簩鍏澶氭鏂圭▼缁,鏂圭▼缁勫涓
    绛旓細棰樹富鐨勪簩鍏冧竴娆℃柟绋嬬粍锛鍙互鐩存帴鐢╲pasolve鍑芥暟姹傝В銆俿yms x y [x,y]=vpasolve(x/2==y/218000+(y/2840)^(1/0.07),x*y==7.90/100000)姹傝В缁撴灉濡備笅
  • 鐢∕ATLAB鎬庝箞瑙d簩鍏浜屾鏂圭▼缁
    绛旓細鐢╩atlab瑙d簩鍏冧簩娆℃柟绋嬬粍锛鍙互鐩存帴鐢╯olve锛堬級鍑芥暟鏉ユ眰瑙銆備緥濡傦細>>[x,y] = solve('x^2*y^2 - 2*x - 1 = 0','x^2 - y^2 - 1 = 0')杩愯缁撴灉 瀵逛簬杈冨鏉傜殑鏂圭▼锛屼篃鍙互鐢ㄦ暟鍊煎垎鏋愮殑鏂规硶锛屽fsolve锛堬級鍑芥暟銆佷簩鍒嗘硶锛岀墰椤挎硶锛屾眰鍑哄叾鏁板艰В銆
  • 鏈夎皝浼鐢╩atlab姹傝В澶氬厓鏂圭▼缁鐨?
    绛旓細鍙互鐢╲pasolve姹傝В銆傚疄鐜颁唬鐮侊細for lambda=1:0.1:2 syms x qr=1.449*lambda.*(1-0.1416*lambda.^2).^3.0303;lambda1=vpasolve(1.57744*x*(1-0.1667*x.^2).^2.5==qr)end 杩愯缁撴灉 matlab瑙f柟绋嬬粍lnx琛ㄧず鎴恖og(x)鑰宭gx琛ㄧず鎴恖og10(x)1-exp(((log(y))/x^0.5)/(x-1))1...
  • 濡備綍浣跨敤matlab姹傝В鍚屼竴褰㈠紡澶氫釜鐨2鍏涓娆鏂圭▼缁銆
    绛旓細syms p x P=rand(5,3);for i=1:5 p=P(i,:);f=p*[x^2;x;1];solve(f)end
  • matlab姹傝В澶氬厓鏂圭▼缁
    绛旓細鐢╩atlab姹傝В澶氬厓鏂圭▼缁勶紝鍙互鎶婇棶棰樿浆鎹负鏋佸奸棶棰樸傚嵆 min 3+sum(p.*log2(p))st. sum(p)=1 -sum(p.*log2(p))=3 p1,p2,p3,...p8鈮0 鑰屾瀬鍊奸棶棰樼敤fmincon鏈灏忓煎嚱鏁版潵姹傝В銆傜紪绋嬪悗鍙互寰楀埌濡備笅缁撴灉锛歱1=0.125005874372445锛沺2=0.125007579745882锛沺3=0.124999277594269锛沺4=0.124998762...
  • 璇锋暀濡備綍鐢╩atlab姹澶氬厓浜屾鏂圭▼缁?
    绛旓細鍚捐寰楄鎵嬪伐璁$畻浠e叆锛屾眰鍑轰竴鍏冮珮娆鏂圭▼锛屽啀鐢╮oots姹傝В锛屾垨鑰呯洿鎺ョ敤solve姹傝В銆俒x1,x2,x3]=solve('x1+x2*x3+x3=100','x1-x2+2*x3=90','x1*x3+x2*x3=300')缁撴灉鏄細x1 = -(1/6*(558900+60*i*6884535^(1/2))^(1/3)+1160/(558900+60*i*6884535^(1/2))^(1/3)+15)^2...
  • MATLAB姹傝В浜屽厓鏂圭▼缁
    绛旓細鏍规嵁棰樻剰锛屾眰瑙d簩鍏冩柟绋嬬粍鍙互鐢╢solve鏉ユ眰瑙c倄0=[-5,-5];func=@(x)[2*x(1)-x(2)-exp(-x(1)),-x(1)+2*x(2)-exp(-x(2))];x=fsolve(func,x0)杩愯缁撴灉 x=0.5671锛寉=0.5671
  • matlab鎬庝箞瑙e鍏冨娆鏂圭▼缁?
    绛旓細涓鑸潵璇达紝澶氬厓澶氭鏂圭▼缁浣跨敤vpasolve鎴杝olve鍑芥暟鍩烘湰閮借兘瑙e喅銆備緥濡 syms x y [sol_x, sol_y] = vpasolve([x*sin(10*x) == y^3, y^2 == exp(-2*x/3)], [x,y])
  • 濡備綍鐢╩atlab瑙鍑烘浜屽厓浜屾鏂圭▼缁?绋嬪簭鎬庝箞鍐
    绛旓細1銆侀鍏堢湅涓涓matlab姹傝В鏂圭▼鐨勬柟娉曪紝鎸囨槑鎵瑙f柟绋嬬殑鍙橀噺锛岀劧鍚庢寚鏄鏂圭▼锛鏈煡鏁板拰闄愬埗鏉′欢锛屾渶鍚庢眰瑙f柟绋嬨2銆佹潵姹傝Вsin(x)=1鏂圭▼锛屽湪matlab鍛戒护琛岀獥鍙d腑杈撳叆symsx [x,params,conds]=solve (sin(x)==1,'ReturnConditions', true) 锛屾寜鍥炶溅閿彲浠ュ緱鍒鏂圭▼瑙o紝濡備笅鍥炬墍绀恒3銆佽浆鎹竴涓嬶紝鍙互鐪嬪埌sin...
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