The integrator circuit is driving by a couple transistors in a astable clock formation.

I need the integrator (opamp, capacitor, resistor) to make a triangle wave but due to my limited math ability I'm having a heck of a time finding out the right cap and resistor combo. All the formulas are calculus in nature and I got my butt kicked in calc class

I would prefer to just have the formula but if it's dependent on knowing the math Ill take the solution too lol.

Ok , here's the specs for my triangle wave gen

The square wave is 5 v at .7ms as per oscilloscope

The outputs buffered by an opamp

Please dontmake suggestions about easier way to do this. I sure there are Much easier ways but this is my design (good or bad ) and since this project is about learning from my mistakes ,I've had tons and thus learned tons