[Blindmath] Question about inputting a function into AGC

[John Gardner]

Hello Minh Ha, AGC uses "calculator notation".  I answer your two questions
below.

-----Original Message-----
From: blindmath-bounces at nfbnet.org [mailto:blindmath-bounces at nfbnet.org] On
Behalf Of minh ha
Sent: Tuesday, May 08, 2012 5:25 PM
To: blindmath at nfbnet.org
Subject: [Blindmath] Question about inputting a function into AGC

Hi all,

I need help with putting a couple of functions into AGC.
How would I input:
1500e^-0.356?
JAG: This is a calculation, so you need to go to the Evaluator screen and
input 1500*e^(-0.356).  The parentheses in the superscript are needed
because the usual preference rules would not have that full number in the
superscript.  My advice is always to use parentheses if you are not sure of
the computational priorities!

sin pi (pi/15x)
I think you mean 
sin(pi*x)*pi/(15*x)
This is a function and should be entered into one of the Data screens.
Press Enter and then F5 to play it.  Warning:  This function is undefined at
x=0, so set your domain to be either larger than 0 or always smaller than 0.
Actually the function approached a well-defined value at 0, so if you used a
domain that includes zero but set your number of points so that it is never
zero (for example x=-10 to 10 with even number of points), it will work just
fine.  But you really have to understand math to get away with such things.
So better to just keep the domains to exclude zero.

J Gardner

AGC is rather particular so it's been difficult for me to put in functions
like these and finding the derivatives/integrals.
Thanks for your help.

Minh


--
"All men dream, but not equally. Those who dream by night in the dusty
recesses of their minds, wake in the day to find that it was vanity:
but the dreamers of the day are dangerous men, for they may act on their
dreams with open eyes, to make them possible." T. E. Lawrence

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