| abs(x) | absolute value of x
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| acos(x) | angle (radians) whose cosine is x
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| asin(x) | angle (radians) whose sine is x
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| atan(x) | angle (radians) whose tangent is x
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| atan2(x,y) | angle (radians) whose tangent is y/x
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| ceil(x) | nearest integer greater than or equal to x
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| cos(x) | cosine of the angle x (radians)
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| exp(x) | e to the power x
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| floor(x) | nearest integer less than or equal to x
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| log(x) | natural logarithm of x
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| max(x,y) | larger of x and y
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| min(x,y) | smaller of x and y
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| pow(x,y) | x raised to the power y
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| round(x) | integer nearest to x
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| sin(x) | sine of the angle x (radians)
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| sqrt(x) | square root of x
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| tan(x) | tangent of x (radians)
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