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Function SOLVEVX
The function SOLVEVX solves an equation for the default CAS variable
contained in the reserved variable name VX. By default, this variable is set to
‘X’. Examples, using the ALG mode with VX = ‘X’, are shown below:
In the first case SOLVEVX could not find a solution. In the second case,
SOLVEVX found a single solution, X = 2.
The following screens show the RPN stack for solving the two examples shown
above (before and after application of SOLVEVX):
Function ZEROS
The function ZEROS finds the solutions of a polynomial equation, without
showing their multiplicity. The function requires having as input the
expression for the equation and the name of the variable to solve for.
Examples in ALG mode are shown next: