integral

swordfish.function.integral()

Return the integral of func from start to end.

If the result is infinity or if the calculation involves complex numbers, the result is NULL.

Parameters:

• func (Constant) – A unary function.

• start (Constant) – A numeric scalar/vector indicating start value. Null means negative infinity.

• end (Constant) – A numeric scalar/vector indicating end value. Null means positive infinity.

• start2 (Constant) – A numeric scalar/vector/unary function indicating the start value of the second dimension in double integral. Null means negative infinity.

• end2 (Constant) –

  A numeric scalar/vector/unary function indicating the end value of the second dimension in double integral. Null means positive infinity.

  • If both start and end are vectors, they must be of the same length.

  • If one of start and end is a scalar and the other is a vector, the scalar is treated as a vector of idential values.