[[PageOutline(2-5,Contents)]] = Another TracFormsPlugin Tutorial For basic information see the [wiki:TracFormsPlugin/Starter beginners part]. == Simple calculations !TracForms don't aim at replacing your pocket calculator. Nevertheless you can do simple calculations with a single input field and !TracForms `sum` operation. Implicit default operation is to sum up all values. It supports arbitrary float precision and reduces results to integer, if possible: {{{ {{{ #!TracForm #! submit_label Calculate! [tf.input:formula 0] = [tf.sum:[tf.value:formula]] }}} }}} The rendered result then becomes: [[Image(forms_example_calc-one-field.png, border=2)]] ---- Read even more in the [wiki:TracFormsPlugin/Expert expert section].