sqfmason

# this is the form html

<div class="jumbotron">
  <div class="container">
    <div class="row">
      <div class="col-md-9">
        <h1>Tip calculator</h1>
      </div>
    </div>
  </div>

sqfmason

ActionView::Template::Error (String can't be coerced into Fixnum):
    2:   <div class="container">
    3:     <div class="row">
    4:       <div class="col-md-12">
    5:         <h3>Add a tip of $ <%= result %> to bring your total amount to $</h3>
    6:         <h3>Each person tips: $</h3>
    7:       </div>
    8:     </div>
  app/controllers/tip_controller.rb:13:in `*'
  app/controllers/tip_controller.rb:13:in `result'

sqfmason

class TipController < ApplicationController
  def form
  	@meal_cost = params[:meal].to_i
  	@tip_percent= params[:tip].to_i
  	@amount_of_people= params[:amount].to_i
  end
end

 def result
 	@meal_cost = params[:meal]

sqfmason

class TipController < ApplicationController
  def form
  	@meal_cost = params[:meal].to_i
  	@tip_percent= params[:tip].to_i
  	@amount_of_people= params[:amount].to_i
  end
end

 def result
 	@meal_cost = params[:meal].to_i

sqfmason

class TipController < ApplicationController
  def form
  	@meal_cost = params[:meal]
  	@tip_percent= params[:tip]
  	@amount_of_people= params[:amount]
  end
end

 def result
   result = (@meal_cost * @tip_percent/100)/@amount_of_people

sqfmason

def square
    @a = params[:length_of_side].to_f
    @area = @a**2
  end
  
  

sqfmason

def circle
    @pi = 3.1416 
    @r = params[:radius]
    @area = @pi*@radius**2
  end
  
  Error NoMethodError in AreasController#circle
undefined method `**' for nil:NilClass