價格：免費
更新日期：2019-01-21
檔案大小：14.8 MB
目前版本：4.3
版本需求：需要 iOS 11.0 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
A power learning aid combining Coaching Calculators and Guides to take you step-by-step through the solving of a pair of simultaneous linear equations.
The app features the addition method, the elimination method and the substitution method.
Coefficients can be nonzero integers from -99 to 99 inclusive.
You develop skills quickly as you work with the calculator and see each step of the process in detail :
Addition method :
- Choose which variable to eliminate
- Decide how to make its coefficients opposites
- Manipulate equations to make its coefficients opposites
- Eliminate the variable by adding the equations
- Solve resulting equation for the other variable
- Back substitute into an original equation
Elimination method :
- Choose which variable to eliminate
- Decide how to make its coefficients the same (absolute value)
- Manipulate equations appropriately
- Eliminate the variable by adding/subtracting equations
- Solve resulting equation for the other variable
- Back substitute into an original equation
Substitution method :
The steps if you start by solving first equation to express x in terms of y are shown here.
- Solve first equation to express x in terms of y
- Substitute x in second equation and solve for y
- Substitute y solution back into rearranged first equation
- Solve resulting equation for x
Note that the Coaching Calculator shows the steps if you start by solving x or y from either equation.
支援平台：iPhone, iPad