One could draw tangents at various values of t and come to the conclusion that the instantaneous speed was roughly proportional to the time that had elapsed since the ball began to roll.
It is easily calculated by measuring the slope of a line drawn tangent to the curve at any defined point.
Anteversion of the femur was defined as the angle between the axis of the femoral neck and the line drawn tangent to the posterior femoral condyles.
At least 10 sections >150 µm apart were used for quantification of Nissl stained motor neurons that met the following criteria used previously [65]: 1) Located below a horizontal line drawn tangent to the bottom of the central canal, 2) visible and distinct nucleolus with robust, globular cytoplasmic staining, and 3) diameter at the largest point >20 µm.
To determine forewing landmarks along the A-P (width) axis, a line parallel to the A-P axis was drawn tangent to the distal part of the stigma.
This involved measuring the angle between a line connecting the ischial spines and another line drawn tangent to the opening of the cup, representing the large diameter of the ellipse.
This led him to assert that the tangent does not touch the circle at a point only but along a definite length of the circumference; clearly he was referring to human perception of drawn tangents and circles.
He discovered a general method of drawing tangents, by treating a curve as the result of the motion of a moving point and by resolving the motion of the point into two simpler components.
This chapter presents some tips and suggestions on using two- and three-dimensional geometrical constructions to solve engineering problems connected with lines, planes, and space and demonstrates the methods of drawing tangents in various circumstances.
We drew tangents at O, located at the haltere base, in the snapshots of the undeflected and deflected positions.
Stem curvature was used as a measure of reorientation and was calculated by drawing tangents onto the photographs of each plant using the image analysis software IMAQ TM version Builder (v1.0).
