5 functions, Functions -48 – Campbell Scientific LoggerNet Datalogger Support Software User Manual

Page 184

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Section 5. Real-Time Tools

nsecPerDay

Number of nanoseconds in a day

nsecPerWeek

Number of nanoseconds in a week

5.2.1.4.5 Functions

The following functions show the use and placement of the numbers the

function operates on. The parentheses are not required unless there are two or

more parameter values. (e.g., ATN2(y,x))

Function

Description

ABS(x)

Returns the absolute value of a number.

ACOS(x)

Returns the arc cosine of a number.

ASIN(x)

Returns the arc sine of a number.

ATN(x)

Returns the arc tangent of a number.

ATN2(y,x)

Returns the arctangent of y/x.

CEILING(x)

Rounds a number up to an integer value.

COS(x)

Returns the cosine of a number.

COSH(x)

Returns the hyperbolic cosine of a number.

CSGN(x)

Changes the sign of a number by multiplying by –1.0.

EXP(x)

Returns e raised to the x power.

FIX(x)

Returns the integer portion of a number. If the number

is a negative, the first negative integer greater than or

equal to the number is returned.

FLOOR(x)

Rounds a number down to an integer value.

FRAC(x)

Returns the fraction part of a number.

FormatFloat(x,y)

Converts a floating point value into a string.

FormatFloatL(x,y) Converts a floating point value into a string and applies

any rules associated with the locale of the computer

running RTMC.

INT(x)

Returns the integer portion of a number. If the number

is a negative, the first negative integer less than or equal

to the number is returned.

IsFinite(x)

Determines if a number is finite.

LN(x)

Returns the natural log of a number. (Note that LN or

LOG may be used to perform the same function.)

5-48

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