LeCroy SDA, Operator'S Manual

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SDA-OM-E Rev H
Functions
These are mainly of the form C = F (A), where A is the argument, or input to the function.
Abs Abs (A) calculates the absolute value of an integer or a real number, so the
result is always positive or zero. A can be any number in the range of the VB
system.
Atn Atn (A) calculates the angle of which A is the tangent. Because infinitely many
angles can have the same tangent, the output of Atn always lies in the range
minus
π
/ 2 to plus
π
/ 2. The input can be any positive or negative value in the
range of the VB system.
CDbl
CDbl (A) calculates a double precision real variable, equal to A.
CInt Cint (A) calculates the integer value nearest to A, which can be any acceptable
VBS number. Cint (-7.4) = -7. Integers are signed 16-bit values in the range -
32767 to + 32767.
CLng CLng (A) calculates the nearest long integer to the value A. Long integers are
signed 32-bit values in the approximate range -21.5 M to + 21.5 M.
Cos Cos (A) calculates the cosine of any integer or real number, giving an output that
is never greater than plus one or less than minus one.
CSng CSng (A) calculates a single precision real variable equal to A.
Exp Exp (A) calculates the value of e
A
.
Int Cint (A) calculates the integer value next below A, which can be any acceptable
VBS number. Int (-7.4) = -8.
Log Log (A) calculates the natural logarithm (to base e), of any acceptable VBS
number greater than zero. A negative number or zero will create an error.
To calculate Log
10
(A), use Log
10
(A) = Log(A) / Log(10)
Mod A Mod (B) calculates the modulus of A, which is the remainder after A has been
divided by B.
34 Mod 8 = 2. 34 Mod 55 = 0. -34 Mod 13 = -8. 21 Mod -8 = 5.
Randomize Calculates a new seed for the pseudo-random number generator.
Randomize Timer uses the real-time clock for this purpose.
Sin Sin (A) calculates the sine of any integer or real number, giving an output that is
never greater than +1 or less than -1.
Sqr Sqr (A) calculates the square root of any integer or a real number that is not
negative. If A is negative, an error will occur.
Timer Time since the previous midnight in whole seconds.