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  1. # 方法一:利用 sprintf() solve (sprintf('%g*x^2 + %g*x + %g = 0', a, b, c), 'x') 即是解 "...不過這個方法並不好用。 # 方法二: syms x; % 先定義一個符號變數 x solve (a*x^2 + b*x + c == 0) 這同樣也是解 "ax^2 + bx + c = 0" 。若等號右邊...

  2. 因為你未告之要用什麼程式 所以在此只描述簡單概念 用 finite difference method dX(t)/dt =( X(t+dt)-X(t) )/dt=A(t)X(t) 即 ( X(t+dt)-X(t) )/dt=A(t)X(t) 整理一下 X(t+dt) = X(t) +dt*A(t)X(t) 詳細執行細節...

  3. T(n) = 2T(n/2) + 1 = 2(2T(n/4) + 1) + 1 = 4T(n/4) + 2 + 1 = 8T(n/8) + 4 + 2 + 1 (let 2^k = n) = 2^kT(n/2^k) + 2^k - 1 (2^k = n, k= log n) = nT(1) + 2^(log n) =n + n = 2n

  4. 利用 solve 的指令即可求解,用法是先把你的式子寫成eq=0的形式,例如3*x^2+4*x+1=0,接著再用如下指令 >> solve ('3*x^2+4*x+1','x') ans = -1/3 -1 就可以解出來...

  5. 您可以使用 solve 這個指令 解法如下: --------------------------...就是您打開matlab後右邊可以輸入指令的視窗)輸入 >> [X,Y]= solve ('X+Y^2=0','X^2+Y^2=9') X...

  6. 看文章的時候可以用ctrl 滑鼠滾輪把字放大縮小 或是參考 http://darkroom.myweb.hinet.net/share/CSS.htm - 5.文字與超連結處理 把你文章的字放大 2007-09-18 07:46:07 補充: http://darkroom.myweb.hinet.net/share/CSS.htm - 5.文字與超連結處理 td { font-family: "Comic Sans MS...

  7. ...y); } } } 2009-05-01 14:56:56 補充: // Note! the above program solves by judging (1) whether (a, b, c) is inputted, --> solve x in equation...

  8. ...sym(m1); m2 = sym(m2); m3 = sym(m3); d1 = sym(d1); d2 = sym(d2); d3 = sym(d3);[x1,y1] = solve ('y=m1*x+d1','y=m2*x+d2'); [x2,y2] = solve ('y=m1*x+d1','...

  9. ... str1 = "This is a very easy problem. I can solve it right now" intKeyWordCount = 0 intI = InStr...

  10. 可以用 matlab 直接求解 >> solve ('5100/(1+IRRa)+5100/(1+IRRa)^2+5100/(1+IRRa)^3+5100/(1...