CASTI-89 TITANIUM · CALC89
cSolve(
Solves an equation over the complex numbers and returns both real and non-real solutions. Use it when solve( finds no real solution, for example for x^2=−4.
Syntax
cSolve(equation, var)
- Group
- Algebra
- Arguments
- Takes the equation and the variable to solve for.
- Availability
- Pro feature in Calc89
- Menu path
- F2 Algebra ▸ Complex ▸ cSolve(
Example
| Input | Result |
|---|---|
| cSolve(x^2=-4,x) | x=−2·ⅈ or x=2·ⅈ |
Typing cSolve(x^2=-4,x) on the home screen and pressing ENTER returns x=−2·ⅈ or x=2·ⅈ.
Keystrokes on the TI-89 Titanium
F2▶▶1
The same key sequence inserts cSolve( in Calc89, and the AI tutor shows it step by step on the on-screen keypad.
Related commands
- 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.
- exact(Converts a decimal or approximate value into an exact rational form where possible.
- expand(Multiplies out products and powers in an expression and returns a sum of terms.
- exp▶list(Extracts the values from a solution such as x=1 or x=2 and returns them as a list.
- factor(Factors an expression over the rational numbers, for example a polynomial into linear and irreducible quadratic factors.
- getDenom(Returns the denominator of a fraction after the expression has been reduced to a common denominator.
- getNum(Returns the numerator of a fraction after the expression has been reduced to a common denominator.