Gamma Functions 伽马函数, Bessel Functions 贝塞耳函数, Orthogonal Polynomials 正交多项式, Elliptic Integrals 椭圆积分, Elliptic Functions 椭圆函数, Hypergeometric Functions 超几何函数, Zeta Functions
It is the same as convert( ) function convert to another form. e.g.
convert exp(x) to sin
The nth order derivative function 导数
The nthd( ) gives the nth derivative formula. It is symbolic higher derivative.
The 0.5th order derivative of sin(x) is denoted by sin(0.5,x) for `sin^((0.5))(x)`.
The minus order derivative is intergal, e.g. `sin^((-1))(x)` is `int` sin(x), it is different from `sin^-1(x)`, which is inverse of sin(x).
A non-integer derivative is inert, e.g. `sin^((0.5))(x)`,
to activate by clicking the simplify button.
The following plot functions did not work on Microsoft IE and QQ browsers. Please use Google Chrome browser.
plot3D(x*y), contour3D(x*y), wireframe3D(x*y), implicit3D(x*y*z), complex3D(x), parametric3D(t,t,t), parametric3Dxy(x,y,x*y), wireframe3Dxy(x,y,x*y), spin3D(x)
立体图, 立体外形图, 立体线框图, 立体隐函数图, 复数图, 立体参数图t, 立体参数图xy, 立体线框图xy,
In order to plot complex function, you should convert it to complex by tocomplex(x) before plot. Use complex(x) to set variable for complex variable in real value, and Use complex(0,x) to set variable for complex variable in imag value. Get real part by re( ) and imag part by im( ). e.g. convert log(x) to re(log(complex(x))).
convert
gamma
dsolve
solve
rsolve
lasolve
nsolve
C cbrt ceil ci circle cis Cl Clausen chi combination combine conjugate convert cos cosh csc csch csgn
d def define definition delta diff difference digamma dilog doublefactorial ds dsolve
E Ei Ein En evaluate eta erf erfc erfi exp expand expandexp expandtrig
factor factorial factorialpower fallingfactorial floor For for FresnelC FresnelS
Gamma gamma GammaQ gammaP gauss gaussi gaussian gcd gsolution
If if im infint infints infsum infsums int integral integrate integrates inverse inverseerf inversefactorial inverseGamma inverselaplace isatom isconstant iscomplex isfloat iseven isfree isfunction isinteger isnumber isodd isprime
L laplace lasolve left Lerch lg li lim limit ln log log10 loggamma
n nextprime nint nlim not nsolve nsum nthd
P Phi parametricplot partialsum plot pochhammer polar polarplot poly polyroot polygamma polylog point powermod prime prod product psi psolve psolution psum
random re recurrence remainder replace right risingfactorial rsolve round
S sec sech secantplot semid semiint series sgn sign si simplify sin sinc sinh smallgamma solve Sophomore sqrt sum sum0inf sum0n sum1inf sum1n swap
tan tani tanh tangent tangentplot taylor test theta tocomplex tocos tocosh todegree toerf toexp togamma tofactorial tolog toint tointegral tosum toparfrac topolar topolard topoly topolyroot topower tosin tosinh toradian totrig totrigh totald trigamma type