module StringTensions
Constants
- K
- VERSION
Public Class Methods
freq_from_pitch(pitch)
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# File lib/string_tensions.rb, line 27 def self.freq_from_pitch(pitch) NoteFrequencies.frequency_from_name(pitch) end
tension(uw_lbs_inch, length_in_inches, freq)
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# File lib/string_tensions.rb, line 9 def self.tension(uw_lbs_inch, length_in_inches, freq) # T (Tension) = (UW x (2 x L x F)**2) / 386.4 (uw_lbs_inch * (2 * length_in_inches * freq)**2) / K end
tension_for_pitch(uw_lbs_inch, length_in_inches, pitch)
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# File lib/string_tensions.rb, line 14 def self.tension_for_pitch(uw_lbs_inch, length_in_inches, pitch) tension(uw_lbs_inch, length_in_inches, freq_from_pitch(pitch)) end
uw(tension_lbs, length_inches, freq)
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# File lib/string_tensions.rb, line 18 def self.uw(tension_lbs, length_inches, freq) # UW (unit weight) = (T x 386.4) / (2 x L x F)**2 ((tension_lbs * K) / (2 * length_inches * freq)**2).to_f end
uw_for_pitch(tension_lbs, length_inches, pitch)
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# File lib/string_tensions.rb, line 23 def self.uw_for_pitch(tension_lbs, length_inches, pitch) uw(tension_lbs, length_inches, freq_from_pitch(pitch)) end