[問題] fplot問題

[bookneed (不可逆的)]

 最近念到function functions

 課本舉了個例子是fplot

 語法是　fplot(fun,lims)

 這是他的例子

 >> vel=@(t) sqrt(9.81*68.1/0.25)*tanh(sqrt(9.81*0.25/68.1)*t);

 >> fplot(vel,[0 12])

 成功跑出圖

 接著我試著將fun換成自己寫的m檔,以這個例子

 function v=vel(t)

 v=sqrt(9.81*68.1/0.25)*tanh(sqrt(9.81*0.25/68.1)*t);


 然後打

 >> fplot(vel,[0 12])

 卻說t沒定義,

 請問若想把fun用自己寫的m檔換掉,該如何做呢?

 還是fun只能是anonymous function??

 我是搞錯哪裡了呢?

 謝謝
~

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" Regret doesn't remind us that we did badly,

  It reminds that we know we can do better. "

                                          --Kathryn Schulz

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