python - solve equations using multiple values of x -


i need on fallowing: lets ask user ecuation can anything, illustrating example lets the user choose one:

x**5+3, , needs assign value of x, this: write equation: write value of x want calculate:

my question is: how can modify x in equation user gave first assign value wants calculate?? in other worlds how can make python calculate x**5+2, x= input value??

it looks want user enter equation variables , value variable. , want code evaluate user input equation user input value variable in equation. sounds candidate eval():

in [185]: equation = 'x ** 5 + 2' in [186]: x = 3 in [187]: eval(equation) out[187]: 245

another example:

in [188]: equation = '(x + 99) * 2' in [189]: x = 1 in [190]: eval(equation) out[190]: 200

since in above demonstration, equation string, might user input. when ask user input equation, store in variable (variable equation here). when ask them value variables in equation, cast int , eval(equation) in code.


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