Xcalc: Public Functions

Public Functions

def(expr)

• Description: Domain of expr

• Type: Program

• Output: Stores result in global variable def_val, and full result in global variable def_val_raw

def_info(expr, print)

• Description: Domain analysis of expr and derivative of expr. Displays info if print is true

• Type: Program

• Output: Stores whether the domains are equal in global variable def_match

def_print(expr)

• Description: Same as def(expr) but prints out def_val and def_val_raw

• Type: Program

def2(expr, var)

• Description: Domain of expr with variable var

• Type: Function

• Output: Returns list of values where expr is undefined

range(function)

• Description: Range of function

• Type: Function

fn_info(function)

• Description: Analysis of function

• Type: Program

• Output: Displays the following:

  • Domain
  • Min and max
  • Intercepts (x and y)
  • Parity
  • Asymptotes (horizontal and vertical)

inverse(function)

• Description: Inverse function of function

• Type: Function

rational_fn(num, den)

• Description: Rational function analysis (where P is num and Q is den)

• Type: Program

• Output: Displays the following:

  • Domain
  • Factors of num and den
  • Holes
  • Intercepts (x and y)
  • Asymptotes (horizontal, vertical, slant)

crit_points(function)

• Critical points of function

• Displays f'(x) and roots of f'(x)

• Displays 2 domains of f(x) and f'(x)

inflect_points(function)

• Inflection points of function

• Displays f''(x) and roots of f''(x)

• Displays domain of f''(x)

parity(function)

• Description: Parity of function with name function

• Type: Function

• Output: Returns even/odd/neither

antiderivative(function, variable)

• Description: Antiderivative of function with respect to variable

• Type: Function

syndiv(poly, div)

• Synthetic division of poly by div

• Returns a list of the coefficients with the last element the remainder

bernoulli(m)

• Returns Bernoulli number (+) m (for m>0)

bernoulli_n(m)

• Returns Bernoulli number (-) m (for m>0)