FAQ

Installation Instructions

• Installation option 1: Find and install this plugin in the Plugins -> Add new section of your wp-admin
• Installation option 2: Download the zip file, then upload the plugin via the wp-admin in the Plugins -> Add new section. Or unzip the archive and upload the folder to the plugins directory /wp-content/plugins/ via ftp
• Press Activate when you have installed the plugin via dashboard or press Activate in the in the Plugins list
• Go to WPcalc section that will appear in your main menu on the left
• Click Add new to create your first calculator
• Setup your calculator
• Click Save
• Copy and paste the shortcode, such as [WPcalc id=1] to where you want the calculator to appear.

How to calculate?

• Calculation can be made only in item type “Result”
• Enter the calculation formula using fields values as field_1(Field 1 value), field_2(Field 2 value) … field_n(Field n value)
• To print the calculation result, use {result} in the field “Result”
  Simple calculation: field_1 + field_2

Which calculation operations are included?

• • • • / – Simple arithmetic operations
• Math.abs(x) – Returns the absolute value of x
• Math.ceil(x) – Returns x, rounded upwards to the nearest integer
• Math.exp(x) – Returns the value of Ex
• Math.floor(x) – Returns x, rounded downwards to the nearest integer
• Math.log(x) – Returns the natural logarithm (base E) of x
• Math.pow(x, y) – Returns the value of x to the power of y
• Math.round(x) – Rounds x to the nearest integer
• Math.sqrt(x) – Returns the square root of x
• Math.max(x, y, z, …, n) – Returns the number with the highest value
• Math.min(x, y, z, …, n) – Returns the number with the lowest value

Example:
Math.round((field_1 + field_2 – field_3)*100)/100 – will return the calculation rounded to hundredths

How can I round the calculated result to 2 decimal digits?

For examle, we need to round the result of formula = field_1 + field_2 – field_3

• 1 way. Use only function Math.round:
  Math.round((field_1 + field_2 – field_3)*100)/100
• 2 way. Use function .toFixed(2):
  (field_1 + field_2 – field_3).toFixed(2)

Where can I publish a form?

You can publish the forms into pages, posts and widget. The shortcode can be also placed into the template.