Campbell Scientific CR1000 Measurement and Control System - Manual (Page 493)

Appendix A. CRBasic Programming Instructions
493
A.6 Processing and Math Instructions
A.6.1 Mathematical Operators
Note Program declaration AngleDegrees() (see Program Declarations
(p. 473)
)
sets math functions to use degrees instead of radians.
A.6.2 Arithmetic Operators
Table 116. Arithmetic Operators
Symbol Name Notes
^ Raise to power
Result is always promoted to a float (p. 142) to avoid problems that
may occur when raising an integer to a negative power. However,
loss of precision occurs if result is > 24 bits.
For example:
(46340 ^ 2) will yield 2,147,395,584 (not precisely correct)
whereas,
(46340 * 46340) will yield 2,147,395,600 (precisely correct)
Simply use repeated multiplications instead of ^ operators when
full 32-bit precision is required.
Same functionality as PWR()
(p. 497) instruction.
* Multiply
/ Divide Use INTDV() (p. 497) to retain 32-bit precision
+ Add
- Subtract
= Equal to
<> Not equal to
> Greater than
< Less than
>=
Greater than or
equal to
<=
Less than or
equal to
A.6.3 Bitwise Operators
Bitwise shift operators (<< and >>) allow the program to manipulate the positions
of patterns of bits within an integer (CRBasic Long type). Here are some example
expressions and the expected results:
• &B00000001 << 1 produces &B00000010 (decimal 2)
• &B00000010 << 1 produces &B00000100 (decimal 4)
• &B11000011 << 1 produces &B10000110 (decimal 134)
• &B00000011 << 2 produces &B00001100 (decimal 12)
• &B00001100 >> 2 produces &B00000011 (decimal 3)