main/src/georegression/struct/GeoTuple3D_F64.java
public void plusIP( GeoTuple3D_F64 a ) {
		x += a.x;
		y += a.y;
		z += a.z;
	}
public void plusIP( GeoTuple3D_F64 a ) {
		x += a.x;
		y += a.y;
		z += a.z;
	}
public void plusIP ( GeoTuple3D_F64 a ) { x += a . x ; y += a . y ; z += a . z ; }
<p>In-place addition</p>

this.x = this.x + a.x;

@param a value which is to be added
<p > In - place addition< / p >