Tag: backed
Learning Ruby
Ruby getting started docs
Learning Ruby on Rails
How To Install Cassandra on CentOS 6
Yum and RPM Convenient Commands
What CentOS and Kernel Version do I have
Special Products in Sage
Initializing Variables:
sage: a,b,c,d,x = var('a,b,c,d,x')
Product of a Monomial and a Binomial
sage: eqn_mon_bin = a*(c+d) sage: eqn_mon_bin.expand() a*c + a*d
Product of the Sum and the Difference of Two Terms
sage: eqn_prod_sum_diff = (a+b)*(a-b) sage: eqn_prod_sum_diff.expand() a^2 - b^2
Square of a Binomial
sage: eqn_bin_sq = (a+b)^2 sage: eqn_bin_sq.expand() a^2 + 2*a*b + b^2 sage: eqn_bin_sq_diff = (a-b)^2 sage: eqn_bin_sq_diff.expand() a^2 - 2*a*b + b^2
Product of Two Binomials
sage: eqn_bin_prod = (x+a)*(x+b) sage: eqn_bin_prod.expand() a*b + a*x + b*x + x^2
Cube of Binomial
sage: eqn_bin_cube = (a+b)^3 sage: eqn_bin_cube.expand() a^3 + 3*a^2*b + 3*a*b^2 + b^3
Square of a Trinomial
sage: eqn_tri_sq = (a+b+c)^2 sage: eqn_tri_sq.expand() a^2 + 2*a*b + b^2 + 2*a*c + 2*b*c + c^2
Tools:
1. SageMathCloud
References:
1. Sage Docs – Symbolic Expressions
2. Schaum’s Outline of College Algebra