Problem 695. Parse string and identify specific string sequence in algebraic equation

Solution 1786893

Submitted on 14 Apr 2019 by Radkhan Sarmukhanov

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Test	Status	Code Input and Output
1	Pass	x = 'X= A1 + A2(Y1 + A3Y123) ;' ; y_correct = {'Y1', 'Y123'} ; assert(isequal(your_fcn_name(x),y_correct))
2	Pass	x= 'X= A + BY1exp( C + DY12*2)' ; y_correct = {'Y1', 'Y12'} ; assert(isequal(your_fcn_name(x),y_correct))
3	Pass	x= 'X= A + Blog( Y1 + 2) ; Z= atan( C + DY3exp( C + DY12**2)' ; y_correct = {'Y1', 'Y12', 'Y3'} ; assert(isequal(your_fcn_name(x),y_correct))

Test

Status

Code Input and Output

Pass

x = 'X= A1 + A2*(Y1 + A3*Y123) ;' ; y_correct = {'Y1', 'Y123'} ; assert(isequal(your_fcn_name(x),y_correct))

Pass

x= 'X= A + B*Y1*exp( C + D*Y12**2)' ; y_correct = {'Y1', 'Y12'} ; assert(isequal(your_fcn_name(x),y_correct))

Pass

x= 'X= A + B*log( Y1 + 2) ; Z= atan( C + D*Y3*exp( C + D*Y12**2)' ; y_correct = {'Y1', 'Y12', 'Y3'} ; assert(isequal(your_fcn_name(x),y_correct))