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Diffstat (limited to 'csci1913/Python/lab1_strap012.py')
| -rw-r--r-- | csci1913/Python/lab1_strap012.py | 115 |
1 files changed, 0 insertions, 115 deletions
diff --git a/csci1913/Python/lab1_strap012.py b/csci1913/Python/lab1_strap012.py deleted file mode 100644 index 396fda9..0000000 --- a/csci1913/Python/lab1_strap012.py +++ /dev/null @@ -1,115 +0,0 @@ -#Matthew Strapp -#5449340 -#Lab 1 - -def left(exp): - return exp[0] -def op(exp): - return exp[1] -def right(exp): - return exp[2] - - -def isInside(var, e): - if type(e) is tuple: - return isInside(var, left(e)) or isInside(var, right(e)) - elif type(e) is str: - return var==e - else: - return -1 - -def solve(v, e): - if isInside(v, left(e)): - return solving(v, e) - elif isInside(v,right(e)): - newE=(right(e),op(e),left(e)) - return solving(v,newE) - #Solving defined on line 52 - else: - return None - -#Four major solving means -def solvingAdd(v,q): - if isInside(v, left(left(q))): - return left(left(q)), '=', (right(q), '-', right(left(q))) - else: - return right(left(q)), '=', (right(q), '-', left(left(q))) -def solvingSubtract(v,q): - if isInside(v, left(left(q))): - return left(left(q)), '=', (right(q), '+', right(left(q))) - else: - return right(left(q)), '=', (left(left(q)), '-', right(q)) -def solvingMultiply(v,q): - if isInside(v, left(left(q))): - return left(left(q)), '=', (right(q), '/', right(left(q))) - else: - return right(left(q)), '=', (right(q), '/', left(left(q))) -def solvingDivide(v,q): - if isInside(v, left(left(q))): - return left(left(q)), '=', (right(q), '*', right(left(q))) - else: - return right(left(q)), '=', (left(left(q)), '/', right(q)) - -#Dict based off of lecture 13th Sept. 2019 -dispatcher={'+':solvingAdd,'-':solvingSubtract,'*':solvingMultiply,'/':solvingDivide} - -def solving(v,q): - if left(q) is v: - return q - else: - if op(left(q)) in dispatcher: - newQ=dispatcher[op(left(q))](v,q) - else: - raise ValueError - return solving(v,newQ) - -# -# TESTS. Test the equation solver for CSci 1913 Lab 1. -# -# James Moen -# 10 Sep 18 -# -# Every test is followed by a comment which shows what must be printed if your -# code works correctly. It also shows how many points the test is worth, for a -# total of 35 possible points. -# - -print(isInside('x', 'x')) # True 1 point -print(isInside('x', 'y')) # False 1 point -print(isInside('x', ('x', '+', 'y'))) # True 2 points -print(isInside('x', ('a', '+', 'b'))) # False 2 points -print(isInside('+', ('a', '+', 'b'))) # False 2 points -print(isInside('x', (('m', '*', 'x'), '+', 'b'))) # True 2 points - -print(solve('x', (('a', '+', 'x'), '=', 'c'))) -# ('x', '=', ('c', '-', 'a')) 2 points - -print(solve('x', (('x', '+', 'b'), '=', 'c'))) -# ('x', '=', ('c', '-', 'b')) 2 points - -print(solve('x', (('a', '-', 'x'), '=', 'c'))) -# ('x', '=', ('a', '-', 'c')) 2 points - -print(solve('x', (('x', '-', 'b'), '=', 'c'))) -# ('x', '=', ('c', '+', 'b')) 2 points - -print(solve('x', (('a', '*', 'x'), '=', 'c'))) -# ('x', '=', ('c', '/', 'a')) 2 points - -print(solve('x', (('x', '*', 'b'), '=', 'c'))) -# ('x', '=', ('c', '/', 'b')) 2 points - -print(solve('x', (('a', '/', 'x'), '=', 'c'))) -# ('x', '=', ('a', '/', 'c')) 2 points - -print(solve('x', (('x', '/', 'b'), '=', 'c'))) -# ('x', '=', ('c', '*', 'b')) 2 points - -print(solve('y', ('y', '=', (('m', '*', 'x'), '+', 'b')))) -# ('y', '=', (('m', '*', 'x'), '+', 'b')) 2 points - -print(solve('x', ('y', '=', (('m', '*', 'x'), '+', 'b')))) -# ('x', '=', (('y', '-', 'b'), '/', 'm')) 2 points - -print(solve('a', (('b', '+', 'c'), '=', ('d', '*', (('a', '/', 'e'), '-', 'f'))))) -# ('a', '=', (((('b', '+', 'c'), '/', 'd'), '+', 'f'), '*', 'e')) 5 points
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