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170 lines
2.9 KiB
Markdown
170 lines
2.9 KiB
Markdown
---
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title: "math"
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aliases:
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- firmwareapi/micropython/math.html
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- firmwareapi/micropython/math.md
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- chapter/firmwareapi/micropython/math
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---
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The math module provides some basic mathematical functions for working with floating-point numbers. Floating point support required for this module.
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## Methods
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#### math.acos(x)
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Return the inverse cosine of `x`.
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#### math.acosh(x)
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Return the inverse hyperbolic cosine of `x`.
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#### math.asin(x)
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Return the inverse sine of `x`.
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#### math.asinh(x)
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Return the inverse hyperbolic sine of `x`.
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#### math.atan(x)
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Return the inverse tangent of `x`.
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#### math.atan2(y, x)
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Return the principal value of the inverse tangent of `y/x`.
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#### math.atanh(x)
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Return the inverse hyperbolic tangent of `x`.
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#### math.ceil(x)
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Return an integer, being x rounded towards positive infinity.
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#### math.copysign(x, y)
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Return x with the sign of `y`.
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#### math.cos(x)
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Return the cosine of `x`.
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#### math.cosh(x)
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Return the hyperbolic cosine of `x`.
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#### math.degrees(x)
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Return radians `x` converted to degrees.
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#### math.erf(x)
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Return the error function of `x`.
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#### math.erfc(x)
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Return the complementary error function of `x`.
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#### math.exp(x)
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Return the exponential of `x`.
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#### math.expm1(x)
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Return `exp(x) - 1`.
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#### math.fabs(x)
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Return the absolute value of `x`.
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#### math.floor(x)
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Return an integer, being `x` rounded towards negative infinity.
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#### math.fmod(x, y)
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Return the remainder of `x/y`.
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#### math.frexp(x)
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Decomposes a floating-point number into its mantissa and exponent. The returned value is the tuple `(m, e)` such that `x == m * 2**e` exactly. If `x == 0` then the function returns `(0.0, 0)`, otherwise the relation `0.5 <= abs(m) < 1` holds.
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#### math.gamma(x)
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Return the gamma function of `x`.
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#### math.isfinite(x)
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Return `True` if `x` is finite.
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#### math.isinf(x)
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Return `True` if `x` is infinite.
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#### math.isnan(x)
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Return `True` if `x` is not-a-number
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#### math.ldexp(x, exp)
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Return `x * (2**exp)`.
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#### math.lgamma(x)
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Return the natural logarithm of the gamma function of `x`.
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#### math.log(x)
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Return the natural logarithm of `x`.
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#### math.log10(x)
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Return the base-10 logarithm of `x`.
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#### math.log2(x)
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Return the base-2 logarithm of `x`.
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#### math.modf(x)
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Return a tuple of two floats, being the fractional and integral parts of `x`. Both return values have the same sign as `x`.
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#### math.pow(x, y)
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Returns `x` to the power of `y`.
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#### math.radians(x)
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Return degrees `x` converted to radians.
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#### math.sin(x)
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Return the sine of `x`.
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#### math.sinh(x)
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Return the hyperbolic sine of `x`.
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#### math.sqrt(x)
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Return the square root of `x`.
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#### math.tan(x)
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Return the tangent of `x`.
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#### math.tanh(x)
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Return the hyperbolic tangent of `x`.
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#### math.trunc(x)
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Return an integer, being `x` rounded towards `0`.
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## Constants
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* `math.e`: Base of the natural logarithm
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* `math.pi`: The ratio of a circle's circumference to its diameter
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