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This section describes functions for performing trigonometric and hyperbolic operations. In all of the functions, the arguments are expressions resolving to angles measured in radians, where x should be interpreted as a real number.
All angles are measured in radians.
All functions can be used in both the data load script and in chart expressions.
Cosine of x. The result is a number between -1 and 1.
cos( x
)
Inverse cosine of x. The function is only defined if -1≤x≤1.
The result is a number between 0 and p.
acos( x
)
Sine of x.
The result is a number between -1 and 1.
sin( x
)
Inverse sine of x.
The function is only defined if -1≤x≤1.
The result is a number between - p/2
and p/2.
asin( x
)
Tangent of x.
The result is a real number.
tan( x
)
Inverse tangent of x.
The result is a number between - p/2
and p/2.
atan( x
)
Two-dimensional generalization of the inverse
tangent function. Returns the angle between the origin and the point represented
by the coordinates x and y. The result is a number between -
p and + p.
atan2( y,x
)
Hyperbolic cosine of x. The result is a
positive real number.
cosh( x
)
Hyperbolic sine of x.
The result is a real number.
sinh( x
)
Hyperbolic tangent of x.
The result is a real number.
tanh( x
)
Inverse hyperbolic cosine of x. The result is a
positive real number.
acosh( x
)
Inverse hyperbolic sine of x.
The result is a real number.
asinh( x
)
Inverse hyperbolic tangent of x.
The result is a real number.
atanh( x
)
Examples:
The following script code loads a sample table, and then loads a table containing the calculated trigonometric and hyperbolic operations on the values.
