please recheck your testsuite.ps:may I suggest you finish some problems by yourself before you create one.because this kinda problem had been repeated like hundreds times.we really tired of seeing this.
I fixed the problem in the test suite.
2 b | ~ 2 b
Is A the inverse of B?
How to subtract?
Solving Quadratic Equations (Version 1)
MATLAB Basic: rounding
Create a Standard Size Vector
Square a Number
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