How do I?

Help I need to set up a math function where a number is multiplied by two raised to the power of X

What's your usecase?

Usecase??? I have no idea what that is.....I am a beginner at some of this stuff.

He is asking what do you need it for and how would you use it, basically he is asking for an example.

Ok heres the problem. GURPS Enhanced Move calls for one doubling per level of enhancement. Thus a lvl3 enhancement would be x8 or 2 to the third power Example Speedy has a Basic Move of 10 he gets Enhanced Move Ground 4 which doubles his move 4 times or 2x2x2x2 for a total of 160

Addtionally acceleration with Enhanced move is calculated at Move x level of enhancement per second. in the above example Speedy accelerates at 40 yards per second

Unfortunately, Roll20 doesn't have an exponent operator for use with basic rolls. Regardless, without the assistance of an API Script, here's how I might handle your use case: Enhanced Move Level @{EnhancedMove} - Basic Speed: @{BasicMove} yd/s - Enhanced Speed: [[ @{BasicMove} * [[({@{EnhancedMove} + d0}>1 + 1) * ({@{EnhancedMove} + d0}>2 + 1) * ({@{EnhancedMove} + d0}>3 + 1) * ({@{EnhancedMove} + d0}>4 + 1) * ({@{EnhancedMove} + d0}>5 + 1) * ({@{EnhancedMove} + d0}>6 + 1) * ({@{EnhancedMove} + d0}>7 + 1) * ({@{EnhancedMove} + d0}>8 + 1)]] ]] yd/s - Enhanced Acceleration: [[ @{BasicMove} * @{EnhancedMove} ]] yd/s^2 You'd need to expand the Enhanced Speed portion of the macro if you plan to have @{EnhancedMove} above 8.

How would that work here <div> <div> Ground </div> <div> <input type="text" name="attr_ground_move_max" value="((@{basic_move_base})*((@{ground_move_enhance})))" disabled="disabled" /> </div> <div> <input type="text" name="attr_ground_accel" value="@{basic_move})*((@{ground_move_enhance)/2))" disabled="disabled" /> </div> <div> <select name="attr_ground_move_enhance" value="0" /> <option value="1" selected="selected">0</option> <option value="2">1</option> <option value="4">2</option> <option value="8">3</option> <option value="16">4</option> <option value="32">5</option> <option value="64">6</option> <option value="128">7</option> <option value="256">8</option> <option value="512">9</option> <option value="1024">10</option> </select> </div> <div> <input type="text" name="attr_ground_move_mode_notes" /> </div> </div> <!-- .sheet-row --> Again I apologize but I don't know HTML, CSS that well but I am learning.

I moved this thread to the Character Sheets forum.

So here is what I have and I still cannot seem to convert your macro into HTML <div> <div> Ground </div> <div> <input type="text" name="attr_ground_move" value="@{basic_move_base} + @{basic_move_mod}" disabled="disabled" data-formula="@{basic_move_base} + @{basic_move_mod}" /> </div> <div> <input type="text" name="attr_ground_move_max" value="(( @{ground_move} * ((({@{enhanced_ground_move} + d0}>1 + 1) * ({@{enhanced_ground_move} + d0}>2 + 1) * ({@{enhanced_ground_move} + d0}>3 + 1) * ({@{enhanced_ground_move} + d0}>4 + 1) * ({@{enhanced_ground_move} + d0}>5 + 1) * ({@{enhanced_ground_move} + d0}>6 + 1) * ({@{enhanced_ground_move} + d0}>7 + 1) * ({@{enhanced_ground_move} + d0}>8 + 1))) ))" disabled="disabled" /> </div> <div> <input type="text" name="attr_ground_accel" value="Accel" disabled="disabled" /> </div> <div> <input type="text" name="attr_enhanced_ground_move" value="0" /> </div> </div> <!-- .sheet-row -->

Crazy Master Gamer said: How would that work here <div> <div> Ground </div> <div> <input type="text" name="attr_ground_move_max" value="((@{basic_move_base})*((@{ground_move_enhance})))" disabled="disabled" /> </div> <div> <input type="text" name="attr_ground_accel" value="@{basic_move})*((@{ground_move_enhance)/2))" disabled="disabled" /> </div> <div> <select name="attr_ground_move_enhance" value="0" /> <option value="1" selected="selected">0</option> <option value="2">1</option> <option value="4">2</option> <option value="8">3</option> <option value="16">4</option> <option value="32">5</option> <option value="64">6</option> <option value="128">7</option> <option value="256">8</option> <option value="512">9</option> <option value="1024">10</option> </select> </div> <div> <input type="text" name="attr_ground_move_mode_notes" /> </div> </div> <!-- .sheet-row --> What's not working about this? @{ground_move_enhance} has the correct values here, simply multiply it by whatever you need.

Well here is a screenshot

So I have redone the code and still same results..... I took Silvre's sample and plugged it in even inside parenthises and no dice. See below <div> <!--<<<<<<<================GROUND MOVE ROW==================<<<<<<<<<<-----> <div> Ground </div> <div> <input type="text" name="attr_ground_move" value="@{basic_move_base} + @{basic_move_mod}" disabled="disabled" data-formula="@{basic_move_base} + @{basic_move_mod}" /> </div> <div> <input type="text" name="attr_ground_move_max" value="([[ @{ground_move} * [[({@{enhanced_ground_move} + d0}>1 + 1) * ({@{enhanced_ground_move} + d0}>2 + 1) * ({@{enhanced_ground_move} + d0}>3 + 1) * ({@{enhanced_ground_move} + d0}>4 + 1) * ({@{enhanced_ground_move} + d0}>5 + 1) * ({@{enhanced_ground_move} + d0}>6 + 1) * ({@{enhanced_ground_move} + d0}>7 + 1) * ({@{enhanced_ground_move} + d0}>8 + 1)]] ]])" disabled="disabled" /> </div> <div> <input type="text" name="attr_ground_accel" value="((@{ground_move}) * (@{enhanced_ground_move}))" disabled="disabled" /> </div> <div> <input type="text" name="attr_enhanced_ground_move" value="0" /> </div> </div> <!-- .sheet-row --> What I cannot figure out is where the "floor" keeps popping up in the results.