youneed to assume voltage at one of the vertex be V and at the opposite vertex be 0. now, the square resistor circuit will be simplified into series-parallel network. By eliminating no current branches, it will reduce to series-parallel combination of only six resistors (instead of 8). now the required resistance can be be easily calculated.

# STMicro LD56100:

STMicroelectronic's LD56100 high accuracy voltage regulator provides 1 A of current from an input voltage ranging from 1.8 V to 5.5 V, with a typical dropout voltage of 120 mV.

# ADI AD4111/AD4112 24-Bit Sigma-Delta ADC:

ADI’s AD4111/AD4112 low-power, low-noise, 24-bit S-? ADCs integrate an AFE for fully differential or single-ended high impedance (=1 MO) bipolar, ±10 V voltage inputs, and 0-20 mA current inputs.

# Vicor PI3740:

The Vicor PI3740 is a high efficiency, wide input and output range DC-DC Cool-Power ZVS Buck-Boost Regulator. This high-density System-in-Package(SiP) integrates controller, power switches, and support components.

# Panduit Terminals & Tools:

Panduit terminal crimping tools are available in an assortment of styles to meet a variety of installation needs. The Contour Crimp™ controlled cycle mechanism assures high quality, consistent terminations.

Electronic Question:

Divide a square resistor into nine parts on average and dig out the middle one. What's the resistance of the remained parts now?

I want to pose a image to explain the situation, but I don't find the place which can let me do it.