{"title":"Exercise 1.19","summary":null,"repo":"psholtz/MIT-SICP","sha":"67c49c0be5bf04c0d1b0c47f4513576710ade45e","actor":"psholtz","page_name":"Fast Fibonacci Number Matrix Calculation","actor_gravatar":"d902ea3e0e4c9023a85a0980b64c4b88","action":"edited"}