티스토리 뷰
Equations
Select 'Equation > Solve ...'
To reduce the number of digits in the output, use; Numeric > Set displayed Precision ...
Equations > Roots of Polynomial : allroots(...)
Equations > Roots of Polynomial(bfloat) : returns results using 'big float' numbers
Equations > Solve Linear System ...
First, it produces this form(with default value = 3)
Keeping the 'Number of equtions = 3' enter the floowing equations:
Equations > Solve Algebraic System ...
In an algebraic system, the equations must include only polynomials of the unknowns
it's similar to the linear system case, first you are asked how many equations, then you enter equations.
Equations > Eliminate Variable ...
Reduces a system of equations by eliminating some variables, example:
Equations > Solve ODE... : solve an ODE
we change x(t) to simply x in 'Sol1', Using 'Simplify > Subsutitude ...'
Equations > Initial Value Problem (1) ..
Use 'Equations > Solve ODE'
'Equations > Initial Value Problem (2)'
Calculus > Laplace Transform...
Calculus > Inverse Laplace Transform...
Equations > Solve ODE with Laplace
Equations > Left side to the "="
Equations > Right side to the "="
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