Quote:
You need it to be of that form which was stated above.
You have to assign the variables for the math equation for smarty to use them.
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Unfortunately, using the snippet below (which I agree, looks like it should work fine) doesn't.
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{math equation="(sub_total+discount+shipping_cost)*0.02"
sub_total=$cart.sub_total
discount=$cart.discount
shipping_cost=$cart.shipping_cost
assign="surcharge"
format="%.2f"}
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And it gives me this error message
Quote:
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Warning: Smarty error: math: parameter sub not passed as argument
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A real head-scratcher...
