Re: extracting powers and coefficients from a polynomial

*To*: mathgroup at smc.vnet.net*Subject*: [mg49067] Re: extracting powers and coefficients from a polynomial*From*: Tomas Hajek <tomas.hajek at st.com>*Date*: Wed, 30 Jun 2004 05:34:14 -0400 (EDT)*References*: <cbrcau$iqc$1@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

Try CoefficientList[] function and then process its result AngleWyrm wrote: > I have made a formula that produces a polynomial expansion, and I wish to > extract the powers and coefficients into a list. > > Expand[(Sum[x^i, {i, 6}])^3] > 1x^3 + 3x^4 + 6x^5 + 10x^6 + 15x^7 + 21x^8 + 25x^9 + 27x^10 + 27x^11 + 25x^12 > + 21x^13 + 15x^14 + 10x^15 + 6x^16 + 3x^17 + 1x^18 > > How do I make a table of the powers and coefficents? > 3, 1 > 4, 3 > 5, 6 > 6, 10 > ..... > -- __ ___ Tomas Hajek -_ / Software engineer __- / Bagavel, s.r.o. STMicroelectronics E-mail: tomas.hajek at st.com Pobrezni 3 Work : +42 02 2233 6129 186 00 Praha 8 Tina : 139 6129 Fax : +42 02 2233 6116 _____________________________________________________________________