Hello,

I would like to program a following problem:

1. I have a result from "Mathematic instruction" bloc (the result is changing over time, but not very quickly).
2. In next moment (lets say in next minute) I would like to add it to previous result from the same instruction. 
3. …. and so on, so on, so on…..till the end of the world or the end of storage place ;)
4. New accumulated (momental) result of this adding should be displayed in text display of Logo (stays there for one minute and then comes a new reading with new bigger result)

I have a hunch that solution may be with use of "Mathematic instruction" setting "When En.=0 then output is Last Value"  or something like that?

But I don’t have quite a solution yet…

I hope I have been clear enough with explanation. Any suggestion?

Well, I guess this will be sooner then end of the world :)

But it will be enough for three year approximately.

Well the number to be added each time would be much smaller, around 0.01

Can Logo deal with such small numbers?

LOGO support, thank you for the informations. Combining the counter for range extension seems as an interesting possibility.

And I must stick with the Logo with this project.

ixo65

LOGO! can't work with floats, LOGO! can only work with integers.

For displaying you can manipulate the value, for the value e.g. 100 you can set for the display 2 decimal places. Then shows you the display 1.00 instead of 100.

But the can you only show on the display values from 0.00 - 327.67.

I can change an approach because of those limitations.

Instead of adding (approx., the figure is just an range example) 00.1 every minute, I could add 14.4 every day (rounded to 14 or 15 by LOGO). Thus the mistake would be 3% in a day which is totally acceptable. Since I am already using averaging function in front of some main factor of "math. instruction" bloc, I hope this will still give me a usable indicator on LOGO display.

If rounding (= cutting the small number behind decimal point) is as usual in mathematics - sometimes to lower number and sometimes to higher (how is  LOGO really rounding?), statistically this will somehow compensate itself and the overall result would be precise enough in one month or one year. I am planning to read out those numbers once per month.

As far of the memory range - it will be OK for cca. 6 years (14 x 365 x 6). Then I can reset it.

So, my dilemma basically stays the same, as I explained in first post: how can I add a previous result with the next one? I can put a programm which I have if this helps with suggestions.