Peter Luschny's profile - overview

● Good Question   × 2

• Restricting the domain of a function
• How to compute Riordan arrays?

● Notable Question   × 27

• Help to understand an AttributeError in a polynomial ring
• Behavior of symbolic_sum changed?
• Wrong error message
• Computing the dimensions of spaces of modular & cusp forms
• Generating a LabelledBinaryTree from its string representation
• Another problem with integral
• Casting symbolic fractions to fraction field of polynomial ring?
• Coefficients in Polynomial Ring over Symbolic Ring ?
• 3d plot with restricted range
• IP-Notebooks and extensions, Sage versus Sage Cloud
• How to convert a Taylor polynomial to a power series?
• How do I use Sloane's Encyclopedia on Sage Math Cloud?
• Reliable integer root function?
• How to compute this exponential generating function?
• How to simplify a simple expression
• Extracting coefficients from symbolic expressions
• How to compute Riordan arrays?
• TypeError: unsupported operand for '*': integer and function
• Help with symbolic sum
• How to compute the multiplicative inverse of a series?
• Binomial Coefficients are inconsistent with Partition Coefficients
• A hypergeometric series
• range, xrange and ellipsis iteration.
• Tree layout of a graph
• Fast plots - How do I do those?
• Restricting the domain of a function
• Seeking an efficient filter for partitions.

● Scholar   × 1

• IP-Notebooks and extensions, Sage versus Sage Cloud

● Commentator   × 1

• Why does Sage offer unusable SciPy?

● Nice Answer   × 2

• Implementing PARI/GP scripts
• How to compute Riordan arrays?

● Good Answer   × 2

• Implementing PARI/GP scripts
• How to compute Riordan arrays?

● Self-Learner   × 3

• An analog to Pari's serlaplace
• 3d plot with restricted range
• How to compute Riordan arrays?

● Enlightened   × 1

• Implementing PARI/GP scripts

● Student   × 1

• IP-Notebooks and extensions, Sage versus Sage Cloud

● Nice Question   × 8

• Redirecting the output of show() to a file?
• Why does Sage offer unusable SciPy?
• A hypergeometric series
• A defect in the first_terms function in the OEIS module
• How to compute Riordan arrays?
• Restricting the domain of a function
• Reliable integer root function?
• How to compute the alternating Hurwitz zeta function?

● Editor   × 1

• 3d plot with restricted range

● Necromancer   × 2

• 3d plot with restricted range
• Solving ax^2+bxy+cy^2=n fast?

● Supporter   × 1

• Computing the dimensions of spaces of modular & cusp forms

● Teacher   × 1

• 3d plot with restricted range

● Enthusiast   × 1

● Taxonomist   × 1

● Popular Question   × 39

• Help to understand an AttributeError in a polynomial ring
• Behavior of symbolic_sum changed?
• Computing the dimensions of spaces of modular & cusp forms
• Generating a LabelledBinaryTree from its string representation
• A bug in Laguerre-L?
• Redirecting the output of show() to a file?
• Casting symbolic fractions to fraction field of polynomial ring?
• Wrong error message
• IP-Notebooks and extensions, Sage versus Sage Cloud
• 3d plot with restricted range
• How do I use Sloane's Encyclopedia on Sage Math Cloud?
• How to convert a Taylor polynomial to a power series?
• How to compute this exponential generating function?
• Binomial Coefficients are inconsistent with Partition Coefficients
• Reliable integer root function?
• How to simplify a simple expression
• Tree layout of a graph
• Extracting coefficients from symbolic expressions
• TypeError: unsupported operand for '*': integer and function
• How to compute Riordan arrays?
• Another problem with integral
• A hypergeometric series
• Help with symbolic sum
• Coefficients in Polynomial Ring over Symbolic Ring ?
• A simple hypergeometric function fails.
• How to compute the multiplicative inverse of a series?
• Fast plots - How do I do those?
• How to import in an Ipython-Notebook on SMC?
• range, xrange and ellipsis iteration.
• Problem with partial_fraction
• Why does Sage offer unusable SciPy?
• Restricting the domain of a function
• Error in rising_factorial
• How to handle integers in the symbolic ring?
• Coefficients of series
• Seeking an efficient filter for partitions.
• The value of binomial(-1,-1) is?
• How convert a polynomial in a power series?
• What guarantees simplify()?

● Famous Question   × 14

• A hypergeometric series
• Generating a LabelledBinaryTree from its string representation
• Restricting the domain of a function
• Extracting coefficients from symbolic expressions
• 3d plot with restricted range
• IP-Notebooks and extensions, Sage versus Sage Cloud
• Reliable integer root function?
• How to simplify a simple expression
• How to convert a Taylor polynomial to a power series?
• TypeError: unsupported operand for '*': integer and function
• Help with symbolic sum
• How to compute the multiplicative inverse of a series?
• How to compute this exponential generating function?
• range, xrange and ellipsis iteration.