In this example we will be creating a Time category similar to the one that is already available.

1. When a2z Pro has loaded tap "Options" in the top right of the screen. On the Options menu that comes up tap "New Category".

 

 

 

2. You now need to name your category and choose a "Primary Unit". Your primary unit is the unit that everything will be converted through. For example in our time category if we wanted to convert from "Hours" to "Minutes" the converter will do the following:

Hours -> Seconds -> Minutes.

or if we wanted to convert from "Weeks" to "Days":

Weeks -> Seconds -> Days

To avoid rounding errors the primary unit should be the smallest unit in your category.

You also need to choose an icon for the category, this should be relevant to the category title. The "Author" field is needed if you are intending to upload the new category.

 

 

 

3. Tap save on the top right of the screen and your category should appear at the bottom of the list. Tap on the category to go into it. When you are inside the category tap "Options" on the top right of the screen. 

 

 

 

4. On the menu tap "Add Unit". You will need to give your unit a name in the "New Unit Name" field, we will be calling this unit "Minutes".

The field named "1 Seconds =" is the field for converting to your Primary unit from the new unit where P is seconds. If P is seconds we will need to divide it by 60 to convert it into minutes so we write "P/60".

The field named "1 Minutes =" is the field for converting from your primary unit where P is minutes. If P is minutes we will need to multiply it by 60 to convert it into seconds so we write "P*60".

 

 

 

5. Tap save on the top right of the screen and your new unit will be added to the list of the units. You can now convert between minutes and seconds. You can repeat step 4 to add an hours unit. However in the "to Primary unit" field you should write "P/60/60" and in the "from Primary unit" field you should write "P*60*60".

6. When you have finished the category, you have the option to upload it. To do so tap "Options" on the top right of the units screen and then tap "Upload Category". If you have added to a downloaded category it will ask you for your name, otherwise it will upload it straight away. Please note this requires an internet connection.

 

 

In the "to Primary Category" and "from Primary Category" you may write expressions such as the examples below:

P*2.54

P*sin(P)

(P-24)*(24/11)

(random()*10)/P

log(2)+2

You may also write these expressions in the "Unit Value" field which is always defaulted to 1.0. P will be replaced with whatever expression is written in the "Unit Value" field. You may not use the capital letter 'P' or any other capital letter in the "Unit Value" field.

Below is a list of operators and functions you may use:

Operators:

 + plus

 - minus

 * multiplied by

 / divided by

 ( open bracket

 ) close bracket

Functions:

abs(a)	the absolute value of a
acos(a)	arc cosine of a
asin(a)	arc sine of a
atan(a)	arc tangent of a
ceil(a)	integer closest to a and not less than a
cos(a)	cosine of a
exp(a)	exponent of a
floor(a)	integer closest to and not greater than a
log(a)	log of a base e
max(a,b)	the maximum of a and b
min(a,b)	the minimum of a and b
pow(a,b)	a to the power b
random()	pseudorandom number in the range 0 to 1
round(a)	integer closest to a
sin(a)	sine of a
sqrt(a)	square root of a
tan(a)	tangent of a

 

 

Trigonometric functions assume that the argument is in radians.

 

 

If you require further information, please visit the support section on our website for ways to contact us.