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Re: Function definition
*To*: mathgroup at smc.vnet.net
*Subject*: [mg15796] Re: Function definition
*From*: "Martin Rommel" <rommel at semitest.com>
*Date*: Sun, 7 Feb 1999 02:04:12 -0500 (EST)
*Organization*: EarthLink Network, Inc.
*References*: <79ea4l$9hm@smc.vnet.net>
*Sender*: owner-wri-mathgroup at wolfram.com
>I need to define a function f(theta,phi) as
>
>f(theta,phi) = f1 if 0 <= theta <= theta0, 0 <= phi <= phi0 f(theta,phi)
>= f2 otherwise
>
>where theta, phi are spherical polar coordinates, <= is less than or
>equal to and theta0 and phi0 are constants.
RTFM: 2.5.8
theta0=Pi/2;phi0=Pi;
f[theta_,phi_]:=f1 /;
(0<=theta)&&(theta<=theta0)&&(0<=phi)&&(phi<=phi0);
f[theta_,phi_]:=f2;
Again: More elegant solutions are appreciated!
>I have tried using Do loops and If statements but haven't been
>successful.
Martin
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