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3.8.10. ATAN2
Returns the radian angle in (-π, π] whose tangent is <sine_expression>/<cosine_expression>,
and which is in the correct quadrant.
Syntax: atan2(<sine_expression>, <cosine_expression>)
3.8.11. CEIL
Returns the smallest integer that is at least as large as the argument (i.e., round towards
+∞). More useful than integer truncation, since it Does The Right Thing with negative
arguments.
Syntax: ceil(<expression>)
3.8.12. COS
Returns the cosine of radian argument <expression>.
Syntax: cos(<expression>)
3.8.13. ELINTK
Complete elliptic integral of the first kind. Used in computation of bowtie antenna feed
impedances. See Abramowitz & Stegun
Syntax: elintk(<expression>)
3.8.14. ELINTK1
Complete elliptic integral of the first kind, of complementary argument. Used in
computation of bowtie antenna feed impedances
Syntax: elintk1(<expression>)
3.8.15. ERF
Error function, . erf(-∞) = -1.0, erf(0)=0 & erf(∞) = 1.0.
Syntax: erf(<expression>)
3.8.16. EXP
Exponential e
x
.
Syntax: exp(<expression>)
3.8.17. FLOOR
Returns the largest integer that is not greater than the argument (i.e., round towards -∞).
More useful than integer truncation, since it Does The Right Thing with negative
arguments.
Syntax: floor(<expression>)
3.8.18. FORMAT
REXX formatted print function. See a REXX manual for full details.
Syntax: format(<expression>,nleft,nright,exptol,nexp)
nleft=number of places to the left of the decimal
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