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Function

1. Classification

1. Math function
   1. Standard Function
      
   2. Special Function:
      beta binomial ci chi ei eta erf erfc erfi gamma harmonic li loggamma polygamma polylog Phi psi si shi mittag tani zeta
   3. Inverse function:
      The inverse of trig function is denoted by prefix "a" onto function name, e.g. asin(x) is inverse of sin(x) for `sin^-1(x)` , other inverse function is denoted by prefix "inverse" onto function name, e.g. inversef(x) is inverse of f(x) for `f^-1(x)`.
   4. The nth order derivative function:
      the 0.5th order derivative of sin(x) is denoted by sin(0.5,x) for `sin^((0.5))(x)`. the nthd() gives a nth derivative formula.
   5. Calculus function:
      lim limit d diff ds dsolve infint infints int integral integrate integrates odetest semid semiint series taylor totald
   6. Integral function:
      Its last letter is "i" for integral, e.g. ei(x) is exp integral of exp(x)/x, tani(x) is tan(x)/x integral.
   7. Discrete math function:
      difference differences Delta Deltas sum sums sum0n sum1n sum0inf sum1inf infsum partialsum psum infsum1 partialsum1 psum1 recurrence rsolve tosum
   8. Inert function: Its last letter is "s", e.g. ds(), integrates().
      
   9. Numeric function: Its first letter is "n" for numeric, e.g. nsum() is numeric sum.
      
2. Programming function
   1. Conversion function: convert() convert to another form. Or its first two letters are "to".
      
   2. Test function: Its first two letters are "is".
      
3. Internal Function - system function in the .class file.
   
4. External Function - user-defined function in text file, which is auto loaded. You can add your own new function.
   

2. Definition

3. Add New Function

4. Usage

convert
gamma

5. Function source

• Math - Symbol - Handbook - math word
• Elementary Math - Higher Math
• Calculator - mathHand - mathHandbook
• Function - Formula - equation - graphics
• Fractional Calculus - differential equation
• Tests - Example :