It can, with some restrictions. Particularly, all arithmetic is done with 16-bit integers. Have a look in the PBasic manual (www.parallax.com/dl/docs/prod/stamps/web-BSM-v2.2.pdf) under the built-in functions (operators) and go through the "math" section of this website: www.emesystems.com.
Comments
In the Help File (or BASIC Stamp Manual) please check out the following PBASIC Operators. SIN, COS, SQR and ATN. I hope this helps. Take care.
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Chris Savage
Parallax Tech Support