# Math Functions

## Elementary Functions

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    Elementary Math Functions
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    abs               Absolute value.
    acos              Inverse cosine.
    acosh             Inverse hyperbolic cosine.
    acot              Inverse cotangent.
    acoth             Inverse hyperbolic cotangent.
    acsc              Inverse cosecant.
    acsch             Inverse hyperbolic cosecant.
    angle             Phase angle.
    asec              Inverse secant.
    asech             Inverse hyperbolic secant.
    asin              Inverse sine.
    asinh             Inverse hyperbolic sine.
    atan              Inverse tangent.
    atan2             Four quadrant inverse tangent.
    atanh             Inverse hyperbolic tangent.
    ceil              Round towards plus infinity.
    conj              Complex conjugate.
    cos               Cosine.
    cosh              Hyperbolic cosine.
    cot               Cotangent.
    coth              Hyperbolic cotangent.
    csc               Cosecant.
    csch              Hyperbolic cosecant.
    exp               Exponential.
    fix               Round towards zero.
    floor             Round towards minus infinity.
    gcd               Greatest common divisor.
    imag              Complex imaginary part.
    lcm               Least common multiple.
    log               Natural logarithm.
    log10             Common logarithm.
    real              Complex real part.
    rem               Remainder after division.
    round             Round towards nearest integer.
    sec               Secant.
    sech              Hyperbolic secant.
    sign              Signum function.
    sin               Sine.
    sinh              Hyperbolic sine.
    sqrt              Square root.
    tan               Tangent.
    tanh              Hyperbolic tangent.
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## Specialized Math Functions

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    Specialized Math Functions
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    bessel             Bessel functions.
    besseli            Modified Bessel functions of the first kind.
    besselj            Bessel functions of the first kind.
    besselk            Modified Bessel functions of the second kind.
    bessely            Bessel functions of the second kind.
    beta               Beta function.
    betainc            Incomplete beta function.
    betaln             Logarithm of beta function.
    ellipj             Jacobi elliptic functions.
    ellipke            Complete elliptic integral.
    erf                Error function.
    erfc               Complementary error function.
    erfcx              Scaled complementary error function.
    erfinv             Inverse error function.
    expint             Exponential integral.
    gamma              Gamma function.
    gammainc           Incomplete gamma function.
    gammaln            Logarithm of gamma function.
    legendre           Associated Legendre functions.
    log2               Dissect floating point numbers.
    pow2               Scale floating point numbers.
    rat                Rational approximation.
    rats               Rational output.
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(c) Copyright 1994 by The MathWorks, Inc.