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def func(arr): output = [] if 'x' not in arr: output.append("{:.5f}".format(0)) return output arr = "".join(arr.split()) arr = arr.replace('-', '+-') elements = arr.split('+') elements = [x for x in elements if x] dict={} print(elements) for e in elements: if '-' not in e: if len(e)==1 and 'x' not in e: coefficient = float(e) exponent = 0 if 'x^' in e: coefficient = e[0] if e[0]=='x': coefficient = 1 exponent = int(e.split('x^')[1]) if '^' not in e and 'x' in e: exponent=1 if len(e)==1: coefficient=1 else: coefficient=e[0] if '-' in e: newe = e.split('-') e = newe[1] if len(e)==1 and 'x' not in e: coefficient = -float(e) exponent = 0 if 'x^' in e: if e[0]=='x': coefficient = -1 else: coefficient = -float(e[0]) exponent = int(e.split('x^')[1]) if '^' not in e and 'x' in e: exponent=1 if len(e)==1: coefficient=-1 else: coefficient=-float(e[0]) dict[exponent] = coefficient max_exp = max(dict.keys()) output = [] for i in range(0, max_exp+1): if i in dict.keys(): output.append("{:.5f}".format(float(dict[i]))) else: dict[i] = 0 output.append("{:.5f}".format(float(dict[i]))) return output
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