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Math
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The modules for the floating point arithmetic. The
Math module has methods and modules methods of
the same definitions in same names.
Example:
pi = Math.atan2(1, 1)*4;
include Math
pi2 = atan2(1, 1)*4
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Module Functions:
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atan2(y, x)
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Returns the arc tangent of the two variable x and
y in radian, which is between -PI and PI.
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cos(x)
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sin(x)
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tan(x)
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Returns the cosine, sine, tangent, respectively, of x, where
x is given in radians, which is between -1 and 1.
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exp(x)
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Returns the value of e raised to the power of
x.
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frexp(x)
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Returns the nomalized fraction and an the exponent.
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ldexp(x,exp)
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Returns the result of multiplying the floating-point number x by 2
raised to the power of exp.
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log(x)
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Returns the natural logarithm of x.
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log10(x)
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Returns the base-10 logarithm of x.
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sqrt(x)
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Returns non-negative square root of x. It raises
an exception, if x is negative.
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Constants:
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PI
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The pi.
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E
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The e.
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matz@netlab.co.jp
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