Campbell Scientific CR200/CR200X-series Dataloggers - Manual (Page 115)

Section 10. CRBASIC Programming Instructions
LOG
Returns the natural logarithm of a number. Ln and Log perform the same
function.
Syntax
x = LOG(source)
x = LN(source)
Note LOGN = LOG(X) / LOG(N)
LOG10
The LOG10 function returns the base 10 logarithm of a number.
Syntax
x = LOG10 (number)
MOD
Divides two numbers and returns only the remainder.
Syntax
result = operand1 MOD operand2
RectPolar
Converts from rectangular to polar coordinates.
Syntax
RectPolar (Dest, Source)
SGN
Finds the sign value of a number.
Syntax
x = SGN(source)
Sqr
Returns the square root of a number.
Syntax
x = SQR(number)
10.6.5 Spatial Processing
AvgSpa
Computes the spatial average of the values in the source array.
Syntax
AvgSpa (Dest, Swath, Source)
CovSpa
Computes the spatial covariance of sets of data.
Syntax
CovSpa (Dest, NumOfCov, SizeOfSets, CoreArray,
DatArray)
MaxSpa
Finds the maximum value in an array.
Syntax
MaxSpa (Dest, Swath, Source)
103