Official Answer
Answer
Mugihe igipimo cyamasoko $ k $ ari umurongo, nyabuneka-isi-amasoko yerekana ingaruka 'hasi' na 'top-off' ingaruka. Mugutangira gutandukana, imiraba ntishobora bose icyarimwe icyarimwe kubera kwihanganira inganda ('ingaruka ya mbere yumurongo'), bikavamo igipimo cyambere cyo hasi. Hafi yuburebure bukomeye, imiraba itangira gukoraho cyangwa amaherezo ya 'shim' atangira kwikuramo, bigatuma igipimo cyiyongera cyane. Ibi bizwi nka 'umutwaro-gusimbuka'. Abashushanya bagomba gushingira gusa kumurongo ugizwe numurongo, mubisanzwe hagati ya $ 20 \% $ na $ 80 \% $ ya deflection iboneka.
