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Re: Defining functions using the output of an other function

• To: mathgroup at smc.vnet.net
• Subject: [mg59623] Re: [mg59596] Defining functions using the output of an other function
• From: "Matthias Bode" <lvsaba at hotmail.com>
• Date: Sun, 14 Aug 2005 04:38:09 -0400 (EDT)
• References: <200508130726.DAA00924@smc.vnet.net>
• Sender: owner-wri-mathgroup at wolfram.com

Hello Eckhard,

try:
INPUT
t[y_] = Solve[4*x^2 + 9*x - 25*y == 0, x][[1,1,2]]

t[0]

OUTPUT

(1/8)*(-9 - Sqrt[81 + 400*y])

-(9/4)

Best regards,

MATTHIAS BODE
Torres Sofer III, depto. 9 A
Pedro Borda #1072
esq. Ismael Vásquez
COCHABAMBA/BOLIVIA

CEL: +591-70 71 56 64
TEL/FAX: +591-4-4 53 34 17
LVSABA at HOTMAIL.COM
Time indicated: UTC (=GMT).

----- Original Message ----- 
From: "Eckhard Schlemm" <e.schlemm at t-online.de>
To: mathgroup at smc.vnet.net
Subject: [mg59623] [mg59596] Defining functions using the output of an other function


> Hi
>
> Is there any possibility in mathematica to define a function using te 
> output
> of another function such as   D[] oder Solve[] ?
>
> for ex.
>
> r[t_]::=Solve[y=x^2,y,x];
>
> That actually does not work, just in order to illustrate what i am talking
> about^^
>
> Thanks a lot
>
> Eckhard
>
>
> 

• References:
  • Defining functions using the output of an other function
    • From: "Eckhard Schlemm" <e.schlemm@t-online.de>