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Is it possible to multiply a number ( 4000 * .05) using 1.0.0.29 IDE?

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Harley

You are still using 1.0.0.29?! Are you reporting a problem?
You should be able to do this, the ".05" is floating point, and Studio is one of the few free BASICs that does 32-bit floating point math.
Check the Math chapter in the new reference manual at
http://www.basicmicro.com/Downloads_ep_43.html
Later.

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kenjj
http://blog.basicmicro.com/
http://kjennejohn.wordpress.com/

I am using 1.0.0.29 as I went to the 2.0.0.0 ide, but then had errors with the pulsin command. I then reverted back to the 29 version until the 2.0.0.5 version is out and has the pulsin problems taken care of. This was on one of my previous posts. I will check out the manual as maybe I don't have the latest. The math functions regarding floating point were kind of vague and I didn't have much luck with implementing them. Maybe the new manual will be clearer and have some examples.
I checked out the new manual and the only thing I found is that it states that floating math is supported with no directions on its use. Maybe I should know how to do this, but I haven't been able to and some simple examples would be helpful. I may not be able to use the floating point math as it states that it is processor intensive and it may slow down the program too much. I am monitoring an rc transmitter stick and the outputs must be very fast. If I have missed something in the manual please let me know. Thanks.

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Harley

2...5 is out!

There are two operators that appear in the precedence tables but are not described elsewhere TOINT, TOFLOAT.
You can do things like:


Kurt

Thanks Kurt. I'll download the .5 ide and it looks like the code you provided may just do the job for me

I tried the following code and received the listed error. ccwval is defined as a var word. This is the error I always seem to get.

ccwval = toint(.05 * tofloat 4000)
Error: FILE C:\PROGRAM FILES\BASICMICRO\SERVOEPAADJ.BAS(LINE 67) : [TOKEN 05] : Unexpected token type

UPDATE! I just realized that the error occurs if the leading zero is not included. Using 0.05 now compiles without error!
ccwval = toint(0.05 * tofloat 4000)

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Harley

Ha!

I just "discovered" toint and tofloat last night! I saw it used in the manual, but no explanation. They work basically as casts, like in C.

Some of last night's code:



Alan KM6VV

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I don't know if this will help but I've been working on math conversions using floating numbers; here are my code examples:

PS: I also found the issues with having to use 0.5 vs .5 and I am using 1.0.0.35

; B,D and Z are reserved; they cannot be declared as variables
X VAR FLOAT
Y VAR FLOAT
A VAR FLOAT

PI FCON 3.14
X= 1.5 * -0.5
Y= 2.234

A= PI * X

DEBUG ["The value of PI is ", REAL PI\3] ;The \3 will round the number to 3 decimal places
DEBUG [13]
DEBUG ["The value of X is ", REAL X\3]
DEBUG [13]
DEBUG ["The value of Y is ", REAL Y\3]
DEBUG [13]
DEBUG ["The value of A is ", REAL A\3]
;or you can combine a CR with this example DEBUG ["The value of PI is ", REAL PI\3,13]

Just a note, the \3 in your code will not round, it truncates.

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