How can I define a+b+c=1 in Sage after doing var('a','b','c')? How would I make sage remember this equation so that it substitutes that value when calculating (a+b+c)².expand() for example?
You can save the equation in a variable and apply it through the .subs method. Try, for example, the following code:
var("a,b,c")
eq = a+b+c==1
print (a^2 + 2*a*b + b^2 + 2*a*c + 2*b*c + c^2).factor().subs(eq)
print (1/a + 1/b + c/(a*b)).simplify_rational().subs(eq)Asked: 6 years ago
Seen: 358 times
Last updated: Mar 04 '19
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