Task: Translation
Input (Tagalog): Tagalog sentence: Kanyang trabaho sa kaugalian equation ay naiimpluwensyahan ng Bunsen, Kirchhoff at Helmholtz, sa whom siya ay malapit na kaibigan sa Heidelberg, at siya ay isinasaalang-alang ang mga kaugalian equation ng analytic mechanics.
Output (English): His work on differential equations was influenced by Bunsen, Kirchhoff and Helmholtz, with whom he was close friends in Heidelberg, and he considered the differential equations of analytic mechanics.