CASTI-89 TITANIUM · CALC89
zeros(
Returns the real values of the variable that make an expression zero, as a list. It gives the same values as solving expr=0, in list form.
Syntax
zeros(expr, var)
- Group
- Algebra
- Arguments
- Takes the expression and the variable.
- Availability
- Included
- Menu path
- F2 Algebra ▸ zeros(
Example
| Input | Result |
|---|---|
| zeros(x^2-9,x) | {−3,3} |
Typing zeros(x^2-9,x) on the home screen and pressing ENTER returns {−3,3}.
Keystrokes on the TI-89 Titanium
F24
The same key sequence inserts zeros( in Calc89, and the AI tutor shows it step by step on the on-screen keypad.
Related commands
- approx(Evaluates an expression numerically and returns a decimal approximation, even when the calculator is in exact mode.
- cFactor(Factors an expression over the complex numbers, so factors with non-real coefficients such as x+ⅈ are allowed.
- comDenom(Combines a sum of fractions into one reduced fraction over a common denominator.
- completeSquare(Rewrites a quadratic expression in completed square form.
- cPolyRoots(Returns all roots of a polynomial as a list, including non-real complex roots.
- cSolve(Solves an equation over the complex numbers and returns both real and non-real solutions.
- cZeros(Returns the real and non-real zeros of an expression as a list.
- domain(Returns the domain of an expression with respect to a variable as a condition, for example x≠0.