Difference between revisions of "Substitute Command"
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==CAS Syntax== | ==CAS Syntax== | ||
Revision as of 15:44, 28 July 2015
CAS Syntax
- Substitute[ <Expression>, <from>, <to> ]
- Substitutes from in expression with to.
- Examples:
Substitute[(x^2 / (4x + 6))^2 + 6(x^2 / (4x + 6)) + 8, x^2, a*(4x + 6)]yields a2 + 6 a + 8.Substitute[(3 m - 3)^2 - (m + 3)^2, m, a]yields 8 a2 - 24 a.
- Substitute[ <Expression>, <Substitution List> ]
- Substitutes in expression every variable of the list with the variable or number you choose for it.
- Example:
Substitute[2x + 3y - z, {x = a, y = 2, z = b}]yields 2a - b + 6.
