Re: Instructions in for
- To: mathgroup at smc.vnet.net
- Subject: [mg89400] Re: Instructions in for
- From: David Bailey <dave at Remove_Thisdbailey.co.uk>
- Date: Sun, 8 Jun 2008 02:33:25 -0400 (EDT)
- References: <g2dboa$9pm$1@smc.vnet.net>
Alejandra Lozada wrote:
> Hello Group,
>
> ______________________________________________
> QUESTION: how to introduce many instructions in for?
> ______________________________________________
>
>
> In C++ it is possible to use while/for and
> include many instructions:
>
> for( i=0; i<n; i++ ){
> instructions,
> as many as you
> like }
>
> In Mathematica, one instruction (Print) :
>
> For[ i=1, i<n, i++, Print[i] ]
> how can I include more instructions?
>
> Thank you All,
> Alejandra L.
>
>
Just provide a number of instructions separated by semicolons. This
construct is known as a compound instruction:
For[ i=1, i<n, i++, Print[i];Print[i^2];Print[i^3] ]
You can put a compound instruction anywhere where an instruction is
needed, for example:
For[ i=1, i<n, Print["Before increment i=",i];i++, Print[i] ]
I think you would find a course on Mathematica fundamentals very
beneficial. Alternatively, try to read and experiment with some code
that others have written.
David Bailey
http://www.dbaileyconsultancy.co.uk