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 | 1 | initial version |  |
You can also use the has() method for an expression:
sage: var('x,c')
sage: y(x)=-3/(x^3 + 3*c + 3*x)
sage: y.has(c)
True| | 1 | initial version | |
You can also use the has() method for an expression:
sage: var('x,c')
sage: y(x)=-3/(x^3 + 3*c + 3*x)
sage: y.has(c)
True
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