def inch_to_meter(inches): return Formulas.round_floating_point(Decimal(inches * 0.0254))
def rpm_to_angular(rpm): angular = (Decimal(2) * pi * rpm) / 60 return Formulas.round_floating_point(angular)
def g_cm3_to_kg_m3(g_cm3): kg_m3 = Decimal(1000) * g_cm3 return Formulas.round_floating_point(kg_m3)
def rpm_to_linear(total_radius, rpm): linear = Decimal(rpm * 2 * total_radius * pi) / Decimal(60) return Formulas.round_floating_point(linear)
def linear_to_rpm(total_radius, linear_speed): rpm = Decimal(linear_speed * 60) / Decimal(2 * total_radius * pi) return Formulas.round_floating_point(rpm)
def meter_to_feet(meter): return Formulas.round_floating_point(Decimal(meter / Decimal(0.0254 * 12)))
def feet_to_inch(feet): return Formulas.round_floating_point(Decimal(feet / 12))
def inch_to_feet(inches): return Formulas.round_floating_point(Decimal(inches * 12))